Adding Decimals
Do you line up decimals when you add?
yes
Do you line up decimals when you subtract?
yes
Do you line up decimals when you multiply?
no
Solve
$55.65 + $15. 25 =
$70.90
(2 x 0.2) + 1
1.4
Give directions on how to add these decimals.
1.65 + .23 =
rewrite to line up decimals
add
bring decimal down
Give directions on how to solve
50.00 - 15.25 =
rewrite to line up decimals
subtract
bring down decimal
Give directions on how to solve
1. 32 x .2 =
rewrite problem - do not line up decimals
multiply and solve
count decimal spaces
Solve
$100.00 - $36.99
$63.01
($2.20+$4) x 2
$12.40
Add
23.99 + 6.99 =
30.98
subtract
3.50 - 1.20 =
2.30
multiply
4.5 x .3 =
1.35
Solve
40.3 x .25
10.075
4.1 x 3 + 6
18.3
Add
204.15 + 1.29
205.44
75.88 - 3.44 =
72.44
multiply
10.5 x .02 =
0.21
solve
3.36 x 4
13.44
8.3 + 3.2 x 4
21.1
Add
105 + 54.77 =
159.77
subtract
100 - 33.55 =
66.45
multiply
4.65 x .5
2.325
Convert to fraction:
1.5
3/2
0.3 + 0.8 * 1.4
1.42