Solution: ..………………………………………………………………………………………... …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. 5 Powered by Multiples and Factors
9 Chapter 9: Decimal Fractions 1) Decimal Fractions (Textbook, Pg. 52) 2) The Decimal Point (Textbook, Pg. 52) 3) Hundredths (Textbook, Pg. 53) 4) Place Value of the Digits in Decimal Fractions (Textbook, Pg. 54) 5) Use of Decimal Fractions (Textbook, Pg. 54) 6) Writing Half, Quarter, Three-quarters and (Textbook, Pg. 55) One and a Quarter in Decimal Form (Textbook, Pg. 56) 7) Adding Decimal Fractions (Textbook, Pg. 58) 8) Subtraction of Decimal Fractions (Textbook, Pg. 58) 11 9) Decimals Used for Measurements Powered by DDeecciimmaall FFrraaccttiioonnss
9.1: Decimal Fractions Very Short Answer Questions (Textbook, Pg. 53) Write the following mixed fractions in decimal form. Solution Problem 1) a) 3190 b) 1140 2) a) 5130 b) 8 10 3) a) 5 10 b) 9110 4) a) 91010 12 b) 415030
Problem Solution 5) a) 78 100 b) 5 100 6) a) 5 10 b) 2 10 c) 20 100 Read the decimal fraction and write down the place value of each digit. (Textbook, Pg. 54) Problem Solution 7) a) 6.13 b) 3.4 8) a) 48.84 b) 0.59 9) 72.05 13 (Textbook, Pg. 55) 10) Write how many rupees and paise. a) ` 58.43 _________________________________ Powered by DDeecciimmaall FFrraaccttiioonnss
b) ` 9.30 _________________________________ c) ` 2.30 _________________________________ d) ` 2.3 _________________________________ Short Answer Questions 11) Write how many rupees in decimal form. (Textbook, Pg. 55) a) 6 rupees 25 paise _________________________________ b) 15 rupees 70 paise _________________________________ c) 8 rupees 5 paise _________________________________ d) 22 rupees 4 paise _________________________________ e) 720 paise _________________________________ 12) Write how many metres and how many centimetres. (Textbook, Pg. 55) a) 58.75 m ________________ b) 9.30 m ________________ c) 0.30 m ________________ d) 0.3 m ________________ 13) Write how many metres and how many centimetres. (Textbook, Pg. 55) a) 1.62 m ________________ b) 91.4 m ________________ c) 7.02 m ________________ d) 0.09 m ________________ 14) Write how many centimetres and how many millimetres. (Textbook, Pg. 55) a) 6.9 cm ________________ b) 20.4 cm ________________ 14 c) 0.8 cm ________________ d) 0.5 cm ________________ 15) Write how many centimetres in decimal form. (Textbook, Pg. 55) a) 7 cm 1 mm ________________ b) 16 mm ________________ c) 144 mm ________________ d) 8 mm ________________
16) Write how many metres in decimal form. (Textbook, Pg. 55) a) 1 m 50 cm ________________ b) 50 m 40 cm ________________ c) 50 m 4 cm ________________ d) 734 cm ________________ e) 10 cm ________________ f) 2 cm ________________ 17) Write the following fractions as decimal fractions. (Textbook, Pg. 56) a) Two and a quarter _________ b) Two and a half __________ c) Two and three quarters _________ d) Ten and a half __________ 18) Write the following fractions as decimal fractions. (Textbook, Pg. 56) a) Fourteen and three quarters __________ b) Sixteen and a quarter __________ c) Twenty-eight and a half __________ Convert the following into decimal fraction and add them. 19) 'One and a half metres' and 'Two and a half metres'. (Textbook, Pg. 57) Solution: ..………………………………………………………………………………………... …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. 15 …………………………………………………………………………………………................. Powered by DDeecciimmaall FFrraaccttiioonnss
20) 'Four and three quarter rupees' and 'seven and quarter rupees'. (Textbook, Pg. 57) Solution: ..………………………………………………………………………………………... …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. 21) 'Six and a half metres’ and ‘Three and three quarter metres. (Textbook, Pg. 57) Solution: ..………………………………………………………………………………………... …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. Long Answer Questions (Textbook, Pg. 57) 16 22) Add the following: a) 23.4 + 87.9 b) 35.74 + 816.6 c) 6.95 + 74.88 d) 41.03 + 9.98 Solution: ..………………………………………………………………………………………...
…………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. 23) Add the following: (Textbook, Pg. 57) a) 51.4 cm + 68.5 cm b) 94.7 m + 1738.45 m c) ` 5158.75 + ` 841.25 Solution: ..………………………………………………………………………………………... …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. 17 …………………………………………………………………………………………................. Powered by DDeecciimmaall FFrraaccttiioonnss
…………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. Subtract the following: (Textbook, Pg. 58) 24) a) 25.74 – 13.42 b) 206.35 – 168.22 c) 63.4 – 31.8 d) 63.43 – 31.8 Solution: ..………………………………………………………………………………………... …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. 18 …………………………………………………………………………………………................. …………………………………………………………………………………………................. ………………………………………………………………………………………….................
…………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. 25) a) 63.4 – 31.83 b) 8.23 – 5.45 c) 18.23 – 9.45 d) 78.03 – 41.65 Solution: ..………………………………………………………………………………………... …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. …………………………………………………………………………………………................. 19 …………………………………………………………………………………………................. …………………………………………………………………………………………................. Powered by DDeecciimmaall FFrraaccttiioonnss
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