Decimal Place

This slide show is intended to reinforce place value and decimals. It is intended to be used in class with a data projector.

Liz Philip

10

Decimal

means

A point means smaller than 1

0.1

Multiply means to get

bigger

So

To multiply by 10 the number gets 10 times bigger

6 x 10 = 60

But the point

NEVER

moves

Divide means to get

smaller

So

To divide by 10 the number gets 10 times smaller

60 10 = 6

But the point

NEVER

moves

1 0.

th h t u . 0

ten

0.2

th h t u . 0

two tenths

1 0.2

th h t u . 0

Ten point two

Ten whole Two tenths

3 0 0.

th h t u . 0

Three hundred

30 0 0.

th h t u . 0

Three thousand

0.03

th h t u . 0

Three hundredths

Multiply means to get

bigger

6.0

th h t u . 0

6 0.

6 x 10 =

6.2

th h t u . 0

6 2.

6.2 x 10 =

6 2.0

th h t u . 0

62 0.

62 x 10 =

But the point

NEVER

moves

Divide means to get

smaller

3 7 0.

th h t u . 0

3 7.0

370 10 =

3 7.

th h t u . 0

3.7

37 10 =

3.7

th h t u . 0

0.37

3.7 10 =

But the point

NEVER

moves