True/False
When adding and subtracting decimals, you always line up the decimal point.
True
3.14 + 5.12 =
8.26
20.8 - 7.34=
13.46
5 x 4.21=
21.05
Maddie went to the store and bought a sandwich for $4.70 cents. She paid with a ten dollar bill. How much money did she get back?
$5.30
When adding and subtracting decimals, you put the number with the greatest value on the bottom.
False
14.73+15.1=
29.83
34.63 - 27.9=
6.73
8.76 x 2.9=
25.404
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 multiplying decimals, the amount of decimal places in your factors determines how many decimal places will be in your product.
True
3 + 4.55=
7.55
15- 0.48=
14.52
10.38 x 6.4=
66.432
Ciera has four cats named Liam, Amy, Rose, and Sadie. The toy she wants to buy each cat costs $5.25. How much will Ciera spend if she buys all 4 of her cats this toy?
$21.00
When adding and subtracting decimals, you always put the number with more digits on top.
False
17.82 + 3.66=
21.48
6 - 2.33=
3.67
12.96 x 32=
414.72
!!!DAILY DOUBLE!!!
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 the same number of decimal places in your answer.
False! That's for multiplying!
11.7 + 2.81=
14.51
1.09 - 0.87=
0.22
32.9 x 61.4=
2,020.06
Avri spends 139.74 minutes a day talking to his friend Mason on the phone. How much time does Avri spend talking on the phone with Mason in ONE week?
978.18 minutes