dividing by decimals mr. johnk 2015. whatever you multiply your divisor by, you must also do to the...
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![Page 1: Dividing by decimals Mr. Johnk 2015. Whatever you multiply your divisor by, you must also do to the dividend! The shortcut is to just move the decimal](https://reader035.vdocuments.mx/reader035/viewer/2022080917/56649ed15503460f94be0d1d/html5/thumbnails/1.jpg)
Dividing by decimalsMr. Johnk 2015
![Page 2: Dividing by decimals Mr. Johnk 2015. Whatever you multiply your divisor by, you must also do to the dividend! The shortcut is to just move the decimal](https://reader035.vdocuments.mx/reader035/viewer/2022080917/56649ed15503460f94be0d1d/html5/thumbnails/2.jpg)
• = = • Each of the fractions are equivalent• x = x =• = 1• Any number multiplied by 1 equals that same number!
![Page 3: Dividing by decimals Mr. Johnk 2015. Whatever you multiply your divisor by, you must also do to the dividend! The shortcut is to just move the decimal](https://reader035.vdocuments.mx/reader035/viewer/2022080917/56649ed15503460f94be0d1d/html5/thumbnails/3.jpg)
• means 3 ÷ 4• 3 ÷ 4 can be written
4 3• So when we divide by decimals, we just multiply our divisor by
10, 100, 1,000 or some other power of ten to make it a whole number.
![Page 4: Dividing by decimals Mr. Johnk 2015. Whatever you multiply your divisor by, you must also do to the dividend! The shortcut is to just move the decimal](https://reader035.vdocuments.mx/reader035/viewer/2022080917/56649ed15503460f94be0d1d/html5/thumbnails/4.jpg)
Whatever you multiply your divisor by, you must also do to the dividend!The shortcut is to just move the decimal the same number of places on each number!
divisor dividend
![Page 5: Dividing by decimals Mr. Johnk 2015. Whatever you multiply your divisor by, you must also do to the dividend! The shortcut is to just move the decimal](https://reader035.vdocuments.mx/reader035/viewer/2022080917/56649ed15503460f94be0d1d/html5/thumbnails/5.jpg)
Now just divide 642.4 by 4!
• 64.24 ÷ 0.4
64.240.4●
You multiplied by 10 so the decimal is now between the 2 and 4.
Place the decimal straight up in the quotient
![Page 6: Dividing by decimals Mr. Johnk 2015. Whatever you multiply your divisor by, you must also do to the dividend! The shortcut is to just move the decimal](https://reader035.vdocuments.mx/reader035/viewer/2022080917/56649ed15503460f94be0d1d/html5/thumbnails/6.jpg)
The answer got smaller!
• 525 ÷ 1.25• Should our answer get
bigger or smaller?• 1.25 525 00 ●
●
125 525004
500-250
2
250-
0
●
●
0
0
Decimal out of sight-decimal to the right!
![Page 7: Dividing by decimals Mr. Johnk 2015. Whatever you multiply your divisor by, you must also do to the dividend! The shortcut is to just move the decimal](https://reader035.vdocuments.mx/reader035/viewer/2022080917/56649ed15503460f94be0d1d/html5/thumbnails/7.jpg)
• However many times you move the decimal to the right on the outside, is how many times you have to move it on the inside!
• How many places would you move the decimal in 76.325 ÷ 0.0357?
• The answer is?• 4 places on each number.• You would need to annex a zero behind the 76325
![Page 8: Dividing by decimals Mr. Johnk 2015. Whatever you multiply your divisor by, you must also do to the dividend! The shortcut is to just move the decimal](https://reader035.vdocuments.mx/reader035/viewer/2022080917/56649ed15503460f94be0d1d/html5/thumbnails/8.jpg)
The answer is 2 places! The 0.31 would become 31 and the 87.532 would become 8753.2!
How many places this time?
87.532 ÷ 0.31