Dividing by 100, 10, .1, .01

Dividing by 100, 10, .1, .01

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When you MULTIPLY by a power of 10 (10, 100, 1000) the decimal moves to the RIGHT and the number gets BIGGER!

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When you MULTIPLY by .1, .01 the decimal moves to the LEFT and the number gets SMALLER!

Multiple Choice

2,293 x 100

• 22.93

• 229,300

• 2.293

• .2293

Multiple Choice

4.21 x 0.1

• .0421

• 42.1

• 4.210

• .421

Dividing by a Whole number!

When you DIVIDE by a power of 10 (10, 100, 1000) the decimal moves to the LEFT and the number gets SMALLER! (this is the opposite of what happens when you multiply)

Dividing by a Decimal

When you DIVIDE by a 0.1 or 0.01 the decimal moves to the RIGHT and the number gets BIGGER!

Multiple Choice

 $4.253\ \div.01$  

Will this decimal jump 2 times to the left or right?

• left

• right

Multiple Choice

 $3.1\div10=$  

• 3.10

• 31

• .31

Multiple Choice

 $4.214\ \div0.1$  

• 42.14

• 421.4

• 4.2140