Transcript Dividing Decimals

Dividing Decimals
“Swingin’ Monkeys”
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
_____
.2 12
.64
This is the
Monkey’s
house
This is
the
“Outside”
Monkey! Divisor
“Inside”
Dividend
“Roof”
Quotient
Division Vocabulary
12.64 ÷ .2
12.64 divided by .2
.2 12.64
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 many places it swings) the inside monkey does also.
Then the monkey takes the decimal in the dividend (inside
number) and climbs up and sits on the roof!
Swingin’ Monkeys
Divisor
.2 12.64
The outside
monkey moved
(swung) the
decimal point 1
place to the right
to make .2 a
whole number 2!!
Steps in Dividing Decimals
Now the inside monkey does the same! Swing the decimal
point in the dividend the same number of places as the
divisor.
.2 12.64
Moved (swung)
the decimal point
1 place to the
right.
Dividend
Steps in Dividing Decimals –
Swingin’ Monkeys
.2 12.64
Steps in Dividing Decimals –
Swingin’ Monkeys
When the monkeys are done swinging they get tired and rest on
their roof bringing along the decimal.
The decimal point in the dividend lines up in the quotient
(on the roof).
.2 12.64
Steps in Dividing Decimals
4. Now, divide as usual!
2 126.4
Steps in Dividing Decimals
4. Divide the numbers. Make sure the decimal point stays
lined up.
63 2
2 126.4
12
6
6
4
Remember
•
•
The more neatly you write and keep the
numbers lined up, the BETTER!
If there is no decimal on the outside the
monkey inside doesn’t move it just swings up
and sits on the roof.