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
Give directions on how to solve
26.5 / 5
5.3
1/2 x 3/7
3/14
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
73.8 / 4
18.45
3/8 x 5/9
5/24
Add
23.99 + 6.99 =
30.98
subtract
3.50 - 1.20 =
2.30
what is 3.47 x 0.31
1.0757
291.6 / 6
Divide:
4/5 / 1/2
8/5 = 1 3/5
Add
204.15 + 1.29
205.44
75.88 - 3.44 =
72.44
multiply
10.5 x .02 =
0.21
divide
5.68 / 8
0.71
What is the process for dividing fractions?
Keep, Change, Flip
Add
105 + 54.77 =
159.77
subtract
100 - 33.55 =
66.45
multiply
4.65 x .5
2.325
divide
12.5 / 5
2.5
Convert the improper fraction to a mixed number:
73/6
12 1/6