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
Abe wants to purchase a new pair of running shoes which cost $100. So far he has saved $67.25.
How much more money does Abe need to purchase the pair of running shoes?
$32.75
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
How much money does Sally need to buy 3 notebooks and a ream of paper?
$9.22
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
If Erica buys 1 bag of taffy for $3.57 and pays with a $10 bill, how much change should she get back?
$6.43
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
Tre's drive to school is 1.67 miles. He drives there and back 5 times a week. How many miles does Tre drive a week?
8.35 miles
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
Walter bought 7.5 bushels of corn. The corn cost $8.75 per bushel.
What was the total cost of the corn Walter bought?
(round to the nearest 100th place)
$65.63
(65.625)