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Dividing Decimals with
Swinging Monkeys
I can fluently divide multi-digit decimals
Dividing Decimals with
Swinging Monkeys
I can fluently divide multi-digit decimals
Swinging Monkeys!
Follow these steps and you will be great at dividing decimals!
Remember: Whatever the OUTSIDE monkeys do – the INSIDE monkeys do also!
Division Vocabulary
64.122.
“Inside” Dividend
“Outside” Divisor
Quotient
Division Vocabulary
64.122.
12.64 ÷ .2
12.64 divided by .2
Steps in Dividing Decimals 1. Make the divisor (outside number) a whole
number by moving (swingin’) the decimal to the right as many places as it takes to make it a WHOLE NUMBER.
2. In MONKEY TERMS: Whatever the outside monkey does (how far it swings) the inside monkey does also. Then the monkey climbs up and sits on the roof!
Swingin’ Monkeys
64.122.Divisor
Moved (swung) the decimal point
1 place to the right Swingin’
Monkey
Steps in Dividing Decimals
2. Move (swing) the decimal point in the dividend the same number of places as the divisor.
64.122. Dividend
Moved (swung) the decimal point 1 place to the right
Steps in Dividing Decimals – Swingin’ Monkeys
64.122.
Steps in Dividing Decimals – Swingin’ Monkeys
64.122.
3. Place (swing) the decimal point in the answer (quotient) lined up with the decimal point in the dividend (on the roof).
Steps in Dividing Decimals
4. Now, divide as usual!
4.1262
Steps in Dividing Decimals
4. Divide the numbers. Make sure the decimal point stays lined up.
4.12626
12 6
2
6 4
3
What is actually happening . . .
n When you move the decimal one place to the right to create a WHOLE number – you are actually multiplying it by 10!
n When you move the decimal two places to the right to create a WHOLE number – you are actually multiplying it by 100!
n Three?
Try these on your own:
1) 14.2 ÷ 0.2 =
2) -25.5 ÷ 1.5 =
3) 20.46 ÷ -3.3 =
Answers to (1-3)
1) 14.2 ÷ 0.2 = 71
2) -25.5 ÷ 1.5 = -17
3) 20.46 ÷ - 3.3 = -6.2
Try these on your own:
4) -2.10 ÷ -0.6 5) 5.28 ÷ 4.8 6) -9.52 ÷ 6.8
Try these on your own:
4) -2.10 ÷ -0.6 = 3.5 5) 5.28 ÷ 4.8 = 1.1 6) -9.52 ÷ 6.8 = -1.4
Try these on your own:
7) -32.76 ÷ -0.78 8) 14.56 ÷ 0.28
Try these on your own:
7) -32.76 ÷ -0.78 = -42 8) 14.56 ÷ 0.28 = 52
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