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Dividing Decimals“Swingin’ Monkeys”
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Swinging Monkeys!
Follow these steps and you will be great at dividing decimals!
Remember: Whatever the OUTSIDE monkeys do – the
INSIDE monkeys do also!
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Division Vocabulary
“Inside”Dividend
“Outside”Divisor
“Roof”Quotient
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Division Vocabulary12.64 ÷ .2
12.64 divided by .2
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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!
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Swingin’ Monkeys
Divisor
Moved (swung) the decimal point 1 place to the right
Swingin’
Monkey
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Steps in Dividing Decimals
2. Move (swing) the decimal point in the dividend the same number of places as the divisor.
Dividend
Moved (swung) the decimal point 1 place to the right
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Steps in Dividing Decimals – Swingin’ Monkeys
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Steps in Dividing Decimals – Swingin’ Monkeys
3. Place (swing) the decimal point in the answer (quotient) lined up with the decimal point in the dividend (on the roof).
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Steps in Dividing Decimals
4. Now, divide as usual!
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Steps in Dividing Decimals
4. Divide the numbers. Make sure the decimal point stays lined up.
6
126
2
64
3
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What is actually happening . . .
■ When you move the decimal one place to the right to create a WHOLE number – you are actually multiplying it by 10!
■ When you move the decimal two places to the right to create a WHOLE number – you are actually multiplying it by 100!
■ Three?
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Remember: The more neatly you write and keep the numbers lined up, the BETTER!
Let’s Practice
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Your Turn - Practice
1) 14.2 ÷ 0.2 =
2) 25.5 ÷ 1.5 =