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Published byJuliet Eaton Modified over 8 years ago

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1 Dividing Decimals By Whole Numbers Stage 4 Years 7 & 8 Press Ctrl-A ©2009 G Dear – Not to be sold/Free to use

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2 b) b) 1.8 ÷ 3 = c) c) 0.16 ÷ 4 = 00 1 0 a) a) 0.8 ÷ 4 = Working 0 ÷ 4 =0 0 DecimalPoint. 8 ÷ 4 =2 2. 0 1 ÷ 3 =0 DecimalPoint 18 ÷ 3 =6 6 1 0 ÷ 4 =.4 DecimalPoint 1 ÷ 4 =0 16 ÷ 4 =4 Simple Division End of Slide

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3 a) 3.2÷4=0.8 b) 4.8÷8=0.6 c) 4.5÷9=0.5 d) 7.2÷9=0.8 e) 0.64÷8=0.08 To see the answer click on any coloured disk. Answer Answer Answer Answer Answer f) 2.2÷2=1.1 g) 1.8÷6=0.3 h) 4.0÷5=0.8 i) 6.3÷7=0.9 j) 0.27÷9=0.03 Answer Answer Answer Answer Answer End of Slide

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4 42 5 a) a) 16.2 ÷ 3 = Instructions Short Division 3 ) 16.2 1.Put decimal point in answer line above decimal point in question. 2.Divide numbers as if they were whole numbers.. 16 ÷ 3 =5 r 1 1 12 ÷ 3 = 4 4 Swap b) b) 12.1 ÷ 5 = 5 ) 12.1. 2 Swap 12 ÷ 5 =2 r 221 ÷ 5 =4 r 1 1 0 DecimalPoint 10 ÷ 5 =2 Add a Zero 2 End of Slide

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5 a) 3.12÷4=0.78 b) 4.8÷3=1.6 c) 4.5÷3=1.5 d) 17.5÷5=3.5 e) 12.64÷4=3.16 To see the answer click on any coloured disk. Answer Answer Answer Answer Answer f) 72.9÷3=24.3 g) 1.92÷6=0.32 h) 24.65÷5=5.93 i) 63.6÷6=10.6 j) 19.26÷9=2.14 Answer Answer Answer Answer Answer End of Slide

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6 a) a) 16.2 ÷ 10 = Instruction Move decimal point one place to the left for each zero in the power of 10. Move decimal point one place to the left for each zero in the power of 10. 1 6 21 6 2. b) b) 16.2 ÷ 100 =1 6 21 6 2. 0 c) c) 16.2 ÷ 1000 = 1 6 21 6 2. 0 0 2 1 3 4 6 22 1 3 4 6 2 d) d) 21346.2 ÷ 10 000 =. Division by Powers of 10 End of Slide

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7 a) 3.12÷10=0.312 b) 4.8÷100=0.048 c) 4.5÷10=0.45 d) 172.5÷1000 =0.1725 e) 12.64÷10=1.264 To see the answer click on any coloured disk. Answer Answer Answer Answer Answer f) 72.9÷100=0.729 g) 1.9÷1000=0.0019 h) 24.65÷10=2.465 i) 63.6÷100=0.636 j) 19.26÷10=1.926 Answer Answer Answer Answer Answer End of Show

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