PR1ME Math PHP 2nd Ed Sample Chapt 3A LR watermarked

TM2nd Edition A world-class program based on top-performing 3A Singapore, Republic of Korea and Hong Kong Coursework Book Name Philippine Edition

TM2nd Edition A world-class program based on top-performing 3A Singapore, Republic of Korea and Hong Kong Coursework Book Scholastic Philippine Edition

Scholastic © 2020 Scholastic Education International (Singapore) Private Limited A division of Scholastic Inc. All rights reserved. No part of this publication may be reproduced in whole or in part, or stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise without the written permission of the publisher. For information regarding permission, write to: Scholastic Education International (Singapore) Pte Ltd 81 Ubi Avenue 4, #02-28 UB.ONE, Singapore 408830 Email: [email protected] For sales enquiries, write to: Scholastic Philippines Penthouse 1, Prestige Tower, F. Ortigas Jr. Road, Ortigas Center, Pasig City 1605 Email: [email protected] Phone: (+632) 7944-7323 Visit our website: www.scholastic.com Coursework Book 3A (Philippine Edition) First edition 2017 Reprinted 2018, 2019 Second edition 2020 ISBN 978-981-4811-59-0

About Mathematics (Philippine Edition) Welcome to Scholastic TM Mathematics (Philippine Edition). and Number Sense, Measurement, Geometry, Statistics and Probability, Numbers Algebra. Patterns and Instructional Design TM Mathematics Scholastic *Let's Readiness Mastery Engagement Concept Lessons Problem Solving Lessons Worksheets *Available in the Coursework Manual © 2020 Scholastic Education International (S) Pte Ltd ISBN 978-981-4811-59-0

concept lessons. Learn Practice. 1 Learn Lesson 2 Addition and Subtraction Learn With Regrouping Learning Outcomes at the concrete-pictorial- Learning Outcomes: abstract Notes • Add a 1-digit number and a 2-digit number • Add two 2-digit numbers 2 Practice • Subtract a 1-digit number from a 2-digit number • Subtract a 2-digit number from a 2-digit number Adding ones with regrouping 1 Add the ones. Learn Add 68 and 4. Tens Ones 68 1 8 4 6 4 + 72 68 + 4 = 72 2 8 ones + 4 ones = 12 ones Regroup the ones. 12 ones = 1 ten 2 ones Scholastic 2 Add the tens. Tens Ones 1 8 6 4 + 72 When there are 10 ones or more, 10 ones = 1 ten change 10 ones to 1 ten. 150 © 2020 Scholastic Education International (S) Pte Ltd ISBN 978-981-4811-56-9 Practices5 Practice Worksheet 1. Write the missing numerator and denominator. ÷3 a) 6 = 9 ÷3 ÷2 b) 8 = 10 ÷2 2. Write the missing numerator and denominator. ÷2 ÷2 ÷3 a) 2 = b) 3 = c) 10 = 8 6 12 ÷2 ÷3 ÷2 d) 6 = 3 e) 12 = f) 10 = 2 14 20 10 15 3. Write each fraction in its simplest form. a) b) ÷2 ÷2 ÷2 2= 8 = = 6 12 ÷2 ÷2 ÷2 4. Write each fraction in its simplest form. Think About It Do Worksheet WS12.2 found at a) 4 = b) 9 = c) 12 = the end of this chapter. 10 15 16 © 2020 Scholastic Education International (S) Pte Ltd ISBN 978-981-4811-60-6 77 © 2020 Scholastic Education International (S) Pte Ltd ISBN 978-981-4811-59-0

A Problem Solving Lesson 4 Problem Solving Worksheets Word problems Learn Mr. Cruz bought an LED monitor for P5863. He also bought a printer that cost P1965 less than the monitor. How much did the monitor and the printer cost altogether? 1 Understand The monitor cost P5863. The printer cost the problem. P1965 less than the monitor. I need to find how much the monitor and the printer cost altogether. 2 Plan I can simplify the problem. First, I what to do. have to find the cost of the printer. I can draw a bar model to help me. 3 Work out the P 5863 Answer. monitor printer ? P 1965 ? P5863 – P1965 = P3898 The printer cost P3898. P5863 + P3898 = P9761 The monitor and the printer cost P9761 altogether. 4 Check 8 16 15 1 Subtracting the cost of if your answer 97 6 1 the printer from the total is correct. – 3898 cost of the monitor and 58 6 3 the printer, I get P5863. My answer is correct. 1. Understand 2. Plan 3. Answer 4. Check 38 © 2020 Scholastic Education International (S) Pte Ltd ISBN 978-981-4811-59-0 WS11.1 Think About It Worksheet WS3.2 Create Your Own Worksheet BM16.5 Mind stretcher Use the given words and numbers to write Learn a) one addition word problem. How many rectangles can you find in this shape? b) one subtraction word problem. Then, solve the word problems. My basketball ScholasticMy beach ball is is heavy! bigger than your basketball. It must be heavier! Dia stamps give away Julio 1 Understand stickers how many Andy left the problem. game cards 483 What shape am I looking for? Yara altogether erasers Are all of them of the same size? 163 buy 342 ? Yen Sam Is Sam correct? Why? 2 Plan I can visualize and draw them out. what to do. 3 Work out the 12 Answer. 34 There are 4 rectangles. 12 There are 2 rectangles. 1 2 There are 2 rectangles. Think About It Create Your Own There is 1 rectangle. Mind stretcherSo, there are 4 + 2 + 2 + 1 = 9 rectangles in all. 4 Check Yes, I have found all the Did you answer rectangles in the shape. the question? Is your answer My answer is correct. correct? 1. Understand 2. Plan 3. Answer 4. Check © 2020 Scholastic Education International (S) Pte Ltd ISBN 978-981-4811-56-9 60 Worksheets © 2020 Scholastic Education International (S) Pte Ltd ISBN 978-981-4811-57-6 Worksheets © 2020 Scholastic Education International (S) Pte Ltd ISBN 978-981-4811-58-3 Worksheets G1B_C11.indd 13 16/01/20 8:07 PM G2A_C3.indd 61 17/01/20 9:30 AM G2B_C16.indd 145 16/01/20 2:06 PM Let’s Remember WS3.1 Let’s Remember Worksheet 1. Add 123 and 326. 326 123 123 + 326 = ? First, add the ones. 123 +326 2. Subtract 435 from 947. 947 answer. Go through the problem using the 4-step Reviews appear Chapter Wrap-upDistribute a copy of Mind stretcher (BM5.3) to each 435 ? student. Have them underline the key information. 947 WS2.3 Review 1 Have students look at the diagram in Mind stretcher (BM5.3). Highlight where Points A and 947 – 435 = –435 First, subtract 1. Writtheethoenensu. mbers. the chapter.Tell students that Joel travels a total distance of Reiterate the following points: a) three thousand, five hundred and twenty-seven 353 meters to get from Point A to Point D. – Meters and centimeters are both units for b) eight thousand, four hundred and six Point out that since there are many possible length. ways to travel from Point A to Point D, we can path that adds up to a total distance of 353 – We use meters to measure longer lengths3a. ndJoe collects 99 baseball cards. centimeters to measure shorter lengths. Shelly collects 15 fewer baseball cards than Joe. – We write m for meter. How many baseball cards does She2l.ly coWllreitcett?he numbers in words. – We write cm for centimeter. 99 a) 4198 b) 7032 – We measure these lines with a ruler: 99 3. – W1 r5ite the numbers. Joe Shelly a) 2000 + 400 + 10 = _____ – We measure these lines with a string and a b) 5903 = 5000 + 900 + _____ ruler: ? 15 Shelly collects baseball cards. 4. Fill in the blanks. a) In 1359, the digit 1 is in the _____ place.

Contents Chapter 1 Numbers 0 to 10 000 43 8 1 Lesson 1: Thousands, Hundreds, Tens and Ones Practice 1 2 Practice 2 4 8 Practice 3 8 0 Lesson 2: Number Patterns 9 300 Practice 4 10 Chapter 2 Addition and Subtraction 4000 Lesson 1: Sum and Difference 12 Practice 1 13 Lesson 2: Adding Ones, Tens, Hundreds and Thousands Practice 2 Scholastic 14 Practice 3 15 4 7 Practice 4 17 Practice 5 19 Practice 6 21 23 Lesson 3: Subtracting Ones, Tens, Hundreds and Thousands 4 Practice 7 24 Practice 8 25 Practice 9 27 Practice 10 29 7 Practice 11 31 Practice 12 34 37 Lesson 4: Problem Solving Practice 13 38 Worksheets 39 Chapter 3 Multiplication and Division Lesson 1: Multiplying Ones, Tens and Hundreds 41 Practice 1 Practice 2 42 Practice 3 Practice 4 43 Practice 5 Practice 6 45 Practice 7 Practice 8 46 Practice 9 49 50 52 54 57 vi © 2020 Scholastic Education International (S) Pte Ltd ISBN 978-981-4811-59-0

Lesson 2: Quotient and Remainder 59 Practice 10 60 Practice 11 63 Lesson 3: Dividing Hundreds, Tens and Ones 64 Practice 12 65 Practice 13 67 Practice 14 69 Lesson 4: Problem Solving 71 Practice 15 73 Worksheets Scholastic Chapter 4 Multiplication Tables of 6, 7, 8 and 9 Lesson 1: Multiplying and Dividing by 6 77 2 3 4 6 Practice 1 Practice 2 80 30 Practice 3 6 Practice 4 81 2 3 Read 82 4 84 Lesson 2: Multiplying and Dividing by 7 86 6 Practice 5 Practice 6 89 Practice 7 Practice 8 90 91 93 Lesson 3: Multiplying and Dividing by 8 95 Practice 9 Practice 10 97 Practice 11 Practice 12 98 99 101 Lesson 4: Multiplying and Dividing by 9 103 Practice 13 Practice 14 104 Practice 15 Practice 16 106 107 109 Lesson 5: Problem Solving 111 Practice 17 Practice 18 112 114 Chapter 5 Ordinal Numbers Write Lesson 1: Ordinal Numbers 40th Practice 1 116 117 60th © 2020 Scholastic Education International (S) Pte Ltd ISBN 978-981-4811-59-0 vii

Chapter 6 Money Lesson 1: The Thousand-Peso Bill 119 Practice 1 120 Practice 2 122 Lesson 2: Adding Amounts of Money 123 Practice 3 124 Practice 4 126 Practice 5 128 Practice 6 129 Practice 7 132 Lesson 3: Subtracting Amounts of Money 133 Practice 8 134 Practice 9 135 Practice 10 137 Practice 11 139 Practice 12 140 Practice 13 143 Scholastic Lesson 4: Problem Solving 144 Practice 14 145 Worksheets Chapter 7 Mental Math Lesson 1: Mental Addition 147 Practice 1 Practice 2 148 150 Lesson 2: Mental Subtraction 151 Practice 3 Practice 4 152 Practice 5 154 Practice 6 156 158 Lesson 3: Mental Multiplication 159 87 8 Practice 7 Practice 8 160 162 Lesson 4: Mental Division 163 Practice 9 164 Practice 10 166 © 2020 Scholastic Education International (S) Pte Ltd ISBN 978-981-4811-59-0

Chapter 8 Graphs 167 Vehicles that went through a tunnel Types of vehicles Lesson 1: Block Graphs 168 Practice 1 Number of Lesson 2: Bar Graphs Practice 2 170 vehicles 80 Lesson 3: Collecting and Presenting Data 60 Practice 3 Worksheets 173 40 179 20 Glossary 0 Problem Solving Process 180 Scholastic 181 182 © 2020 Scholastic Education International (S) Pte Ltd ISBN 978-981-4811-59-0 ix

Scholastic

Numbers 0 to 10 000 Lesson 1 Thousands, Hundreds, Tens and Ones Learning Outcomes: • Read and write numbers within 10 000 • Write 4-digit numbers in thousands, hundreds, tens and ones • Identify the values of digits in numbers • Compare and order numbers within 10 000 Reading and writing numbers Learn a) Scholastic 2 thousands 3 hundreds 5 tens 4 ones 1000 1000 100 100 100 10 10 10 10 10 1111 2000 2354 Count on from 1000. 300 50 1000, 2000, 2100, 2200, 2300, 4 2310, 2320, 2330, 2340, 2350, 2351, 2352, 2353, 2354 2000 + 300 + 50 + 4 = 2354 2354 is read as two thousand, three hundred and fifty-four. © 2020 Scholastic Education International (S) Pte Ltd ISBN 978-981-4811-59-0 1

b) 100 1 1 1000 100 100 11 1000 1000 100 100 11 1000 1000 100 100 10 11 5 thousands 7 hundreds 1 ten 8 ones Thousands Hundreds Tens Ones 5718 (Th) (H) (T) (O) 5 7 1 8 5000 + 700 + 10 + 8 = 5718Scholastic Practices1 1. Write the number. 2. Write the numbers. a) b) 2 © 2020 Scholastic Education International (S) Pte Ltd ISBN 978-981-4811-59-0

3. Write the numbers. 10 10 10 10 111 a) 10 10 10 10 10 1000 1000 1000 100 100 3000 + 200 + 90 + 3 = b) 1000 1000 1000 100 100 1111 1111 1000 1000 1000 100 100 100 6000 + 500 + 8 = Scholastic 4. Write the number two thousand, seven hundred and fifteen. 5. Write the numbers. a) seven thousand, one hundred and thirty-nine b) one thousand, eight hundred and four c) three thousand, five hundred and ten 6. Write 8241 in words. 7. Write the numbers in words. a) 4006 b) 9257 c) 8013 8. Count on. , , a) 2210, 2220, 2230, , , 7480, b) 5900, , 6100, 6200, c) 3480, 4480, , © 2020 Scholastic Education International (S) Pte Ltd ISBN 978-981-4811-59-0 3

Identifying values of digits Learn 4358 is a 4-digit number. 4358 8 The digit 8 stands for 8. 5 0 The digit 5 stands for 50. 3 0 0 The digit 3 stands for 300. 4 0 0 0 The digit 4 stands for 4000. 4000 + 300 + 50 + 8 = 4358 Th H T O 4358 In 4358, the digit 8 is in the ones place and its value is 8. The digit 5 is in the tens place and its value is 50. The digit 3 is in the hundreds place and its value is 300. The digit 4 is in the thousands place and its value is 4000. Scholastic Practices2 b) 2 9 0 7 1. What does each digit stand for? a) 8 6 1 5 600 4 © 2020 Scholastic Education International (S) Pte Ltd ISBN 978-981-4811-59-0

2. Fill in the missing numbers. a) 1385 = 1000 + + 80 + 5 b) 1426 = 1000 + 400 + +6 c) 1026 = 1000 + +6 d) 5904 = + 900 + 4 e) 2030 = 2000 + 3. Look at the place value table below and fill in the blanks. Th H T O 6135 Scholastic a) The digit 1 is in the place. b) The digit 3 stands for . c) The digit in the thousands place is . d) The value of the digit 5 is . 4. Fill in the blanks. a) In 3470, the digit 4 is in the place. b) In 8129, the digit is in the tens place. c) In 7286, the digit has a value of 7000. d) In 9305, the digit 0 has a value of . 5. What does the digit 6 stand for in each of the following numbers? a) 2461 b) 6007 c) 5623 © 2020 Scholastic Education International (S) Pte Ltd ISBN 978-981-4811-59-0 5

Comparing two numbers Learn a) Compare 6274 and 4539. 6274 Th H T O 4539 6 2 7 4 4 5 3 9 Compare the thousands. 6 thousands is greater than 4 thousands. So, 6274 is greater than 4539. 6274 > 4539 Scholastic We can also say that 4539 is smaller than 6274. 4539 < 6274 b) Compare 8418 and 8475. Th H T O 8418 8 4 1 8 8475 8 4 7 5 First, compare the thousands. They are the same. Next, compare the hundreds. They are the same. Then, compare the tens. 1 ten is smaller than 7 tens. So, 8418 is smaller than 8475. We can also say that 8418 < 8475 8475 is greater than 8418. 8475 > 8418 6 © 2020 Scholastic Education International (S) Pte Ltd ISBN 978-981-4811-59-0

Comparing three numbers Learn Compare 5327, 3614 and 5351. 5327 Th H T O 3614 5 3 2 7 5351 3 6 1 4 5 3 5 1 First, compare the thousands. 3 thousands is smaller than 5 thousands. 3614 is the smallest. Scholastic Next, compare 5327 and 5351. 5327 Th H T O 5351 5 3 2 7 5 3 5 1 Compare the thousands and hundreds. They are the same. Then, compare the tens. 2 tens is smaller than 5 tens. 5327 is smaller than 5351. 5351 is the greatest number. Arranging the numbers in order from the smallest, we have: 3614, 5327, 5351 (smallest) When we arrange the numbers in order from the greatest, we have: 5351, 5327, 3614 (greatest) © 2020 Scholastic Education International (S) Pte Ltd ISBN 978-981-4811-59-0 7

Practices3 1. a) Which is greater, 1902 or 1368? b) Which is smaller, 4715 or 4517? 2. Fill in the blanks with greater than or smaller than. a) 4135 is 5134. b) 2847 is 2748. 7561. c) 9203 is 9032. d) 7516 is 3. Fill in the circles with > or <. b) 6401 6483 a) 3527 1479 d) 8299 8294 c) 4280 4652 Scholastic 4. Circle the smallest number. Cross out the greatest number. a) 2215 , 1704 , 3860 b) 9853 , 7692 , 9081 5. Circle the smallest number. Cross out the greatest number. a) 7300 , 7003 , 7030 b) 4792 , 4927 , 4279 6. Arrange the numbers in order. Begin with the greatest. 8719 8745 5298 6273 ,,, (greatest) 7. Form the following numbers using the digits 5, 0, 3 and 6. Use each digit only once. a) Greatest 4-digit number: b) Smallest 4-digit number: 8 © 2020 Scholastic Education International (S) Pte Ltd ISBN 978-981-4811-59-0

Lesson 2 Number Patterns Learning Outcomes: • Find 1, 10, 100 or 1000 more than a given number • Find 1, 10, 100 or 1000 less than a given number Finding ‘more than’ and ‘less than’ Learn Th H T O 2453 Scholastic a) What number is 1000 more than 2453? Th H T O 2453 + 1000 3453 1000 more than 2453 is 3453. b) What number is 100 less than 2453? Th H T O 2453 – 100 2353 100 less than 2453 is 2353. c) What number is 10 more than 2453? Th H TO 2453 + 10 2463 10 more than 2453 is 2463. d) What number is 1 less than 2453? Th H T O 2453 – 1 2452 1 less than 2453 is 2452. © 2020 Scholastic Education International (S) Pte Ltd ISBN 978-981-4811-59-0 9

Number patterns Learn a) Count on in steps of 10 from 1238 to 1258. + 10 + 10 1258 10 more than 1238 is 1248. 10 more than 1248 is 1258. 1238 1248 1000 200 1000 1000 50 200 200 8 30 40 8 8 b) Count on in steps of 1000 from 2090 to 6090. + 1000 + 1000 1000 more than 2090 is 3090. 1000 more than 3090 is 4090. 2090, 3090, 4090, 5090, 6090 Scholastic c) Count backwards in steps of 100 from 5816 to 5416. – 100 – 100 100 less than 5816 is 5716. 100 less than 5716 is 5616. 5816, 5716, 5616, 5516, 5416 Practices4 1. Fill in the blanks. a) 10 more than 3508 is . Th H T O b) 100 less than 1423 is . c) 1000 less than 7759 is . d) is 1 less than 5674. e) is 1000 more than 3087. f) 6126 is more than 6125. g) 2394 is more than 2294. h) 8051 is less than 9051. 10 © 2020 Scholastic Education International (S) Pte Ltd ISBN 978-981-4811-59-0

2. Fill in the blanks. a) 1 more than 4047 is . b) 10 less than 2472 is . c) 100 more than 9716 is . d) 1 less than 5608 is . e) is 1000 more than 1365. f) is 100 less than 6824. g) 8517 is 1 more than . h) 6729 is 1000 more than . i) 3432 is more than 3422. j) 1158 is less than 1168. k) 9451 is less than 9551. l) 7046 is less than 8046. 3. Complete the number patterns. Scholastic a) 1004, 1104, 1204, , , 1504 + 100 + 100 1004, 1104, 1204 b) 3748, 3738, , 3718, 3708, 4. Complete the number patterns. a) 6357, 6358, 6359, , 6361, b) , 9442, 9342, 9242, , 9042 c) 7931, , 7951, 7961, , d) 7450, , , 4450, 3450, 2450 e) 5972, 5971, , , 5968, 5967 f) 4825, 5825, , 7825, , 9825 g) , 2050, 2040, , 2020, 2010 h) 8749, , 8729, , 8709, 8699 © 2020 Scholastic Education International (S) Pte Ltd ISBN 978-981-4811-59-0 11