Transcript Decimal PPT - ICTeachers

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
Decimal
means
10
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
ten
th h t u .0
1 0.
two tenths
th h t u .0
0.2
Ten point two
th h t u .
Two 0tenths
Ten whole
1 0.2
Three hundred
th h t u .0
3 0 0.
Three thousand
th h t u .0
3 0 0 0.
Three hundredths
th h t u .0
0.0 3
Multiply means to get
bigger
6 x 10 =
th h t u .0
6 0.
6.0
6.2 x 10 =
th h t u .0
6 2.
6.2
62 x 10 =
th h t u .0
6 26 0.
2.0
But the point
NEVER
moves
Divide means to get
smaller
370  10 =
th h t u .0
3 37 7.0
0.
37  10 =
th h t u .0
3 3.7
7.
3.7  10 =
th h t u .0
3.7 7
0.3
But the point
NEVER
moves