|
|
10’s
|
1’s
|
0.1’s
|
0.01s
|
|
$ 1
|
3.
|
3
|
5
|
|
-$
0
|
7.
|
8
|
6
|
In the hundredths place
(0.01s), you cannot remove 6 hundredths from 5 hundredths.
|
|
10’s
|
1’s
|
0.1’s
|
0.01s
|
|
|
|
2
|
15
|
|
$ 1
|
3.
|
3
|
5
|
|
-$ 0
|
7.
|
8
|
6
|
So trade 1 tenth (0.1s) for
10 hundredths, giving 15 hundredths and leaving 2 tenths
Look at the 0.1s place.
You cannot remove 8 tenths from 2 tenths.
|
|
10’s
|
1’s
|
0.1’s
12
|
0.01s
|
|
|
2
|
2
|
15
|
|
$ 1
|
3.
|
3
|
5
|
|
-$ 0
|
7.
|
8
|
6
|
So trade 1 one for 10
tenths, giving 12 tenths and leaving 2 ones.
Look at the 1’s place.
You cannot remove 7 ones from 2 ones.
|
|
10’s
|
1’s
12
|
0.1’s
12
|
0.01s
|
|
0
|
2
|
2
|
15
|
|
$ 1
|
3.
|
3
|
5
|
|
-$ 0
|
7.
|
8
|
6
|
|
$
|
5.
|
4
|
9
|
So trade 1 tens for 10
ones, giving 12 ones and leaving 0 tens.
Now subtract each column
starting in the hundredths column.
15 – 6 = 9
12 - 8 = 4
12 – 7 = 5
$13.35 - $7.86 = $ 5.49
Don’t forget to write the
$ and the . (decimal
point).
|