True/False
Adding Decimals
Subtracting Decimals
Multiplying Decimals
Word Problems
100

When adding and subtracting decimals, you always include the decimals.

True

100

26.43 + 7.19


33.62

100

1.23-1.11=

0.12

100

DAILY DOUBLE

.24 x .7 

.168

100

Precious 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

200

When adding and subtracting decimals, you always put the longer number on top.

False

200

DAILY DOUBLE

8.009 + 6.5


14.509

200

5.23-0.1=

5.13

200

0.85 x 0.02


.017

200

Wake and Chase went to the store together. Wake bought a video game for $32.77 and Chase bought a soccer ball for $12.45. How much did Wake and Chase spend together? 

$45.22

300

When adding and subtracting decimals, you ignore the decimal points.

False

300

0.79 +0.45


1.24

300

27.81-5.62

22.19

300

DAILY DOUBLE

.22 x .44=

.0968

300

Lyla has 4 cats named Beatrice, Lucas, Drew, and Jenny. Lyla wants to buy each cat a new toy. The toy she wants to buy each cat costs $5.25. How much will Lyla spend if she buys all 4 of her cats this toy? 

$21.00

400

When subtracting decimals you put the bigger number on top.

True

400

17.82 + 3.66=

21.48

400

8.613 -7.258


1.355

400

DAILY DOUBLE

.42 x .2 in fraction form 

84/ 1000

400

Daphne 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 Daphne spend? 

21.15

500

When adding and subtracting decimals, you count how many numbers are behind the decimals in the problem and put that in your answer.

DON'T LET IT TRIP YOU UP, DON'T LET IT TRIP YOU UP! :)

False! That's for multiplying!

500

111.7 + 102.81=

214.51

500

105.65-62.33=

43.32

500

What is the trick when multiplying decimals by powers of 10? What is the trick when dividing by powers of 10?

Move the decimal to the right when multiplying. Move the decimal to the left when dividing. 

500

DAILY DOUBLE

Rowan spends 139.74 minutes a day talking to his friend Elijah on the phone. How much time does Rowan spend talking on the phone with Elijah in ONE week? 

978.18 minutes