True/False
When adding and subtracting decimals, you always include the decimals.
True
2.3 + 1.5
3.8
1.23-1.01=
0.22
.7 x .7
.49
Matthew went to the store and bought a big bag of Blue Takis for $4.70 cents and 2 liter soda for $2.99 How much money did he spend?
$7.69
When adding and subtracting decimals, you always put the longer number on top.
False
8.09 + 6.5
14.59
5.23-0.1=
5.13
1.5 x .2
.20
Austin and Chase went to the store together. Austin bought a video game for $32.77 and Chase bought a soccer ball for $12.45. How much did Austin and Chase spend together?
$45.22
When adding and subtracting decimals, you ignore the decimal points.
False
0.79 +0.45
1.24
27.82-5.62
22.20
22 x .3 =
6.6
When subtracting decimals you put the bigger number on top.
True
17.82 + 3.66=
21.48
8.63 -7.25
1.38
6.32 x 3
18.96
Aaliyah buys two books, one poster, and one eraser at the school book fair. Each book costs $8.50. The poster cost $3.45 and the eraser cost $0.70. How much did Aaliyah spend?
21.15
When adding and subtracting decimals, you count how many numbers are behind the decimals in the problem and put that in your answer.
False! That's for multiplying!
111.7 + 102.81=
214.51
105.65-62.33=
43.32
1.2 x 1.2
1.44
Michael spends 139.74 minutes a day talking to his friend Matthew on the phone. He spends 42.54 minutes talking to his mother on the phone. How much time does Michael spend talking on the phone.
182.28 minutes