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100

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

True

100

3.14 + 5.12 = 

8.26

100

1.23-1.11=

0.12

100

1.11+2.22=

3.33

100

Matthew went to the store and bought a sandwich for $4.70 cents. He paid with a ten dollar bill. How much money did he get back? 

$5.30

200

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

False

200

14.73+15.1=

29.83

200

5.23-1.11=

4.12

200

0.54+0.22=

0.76

200

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

300

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

False

300

3 + 4.55=

7.55

300

5.55-4.44=

1.11

300

0.22+0.44=

0.66

300

Laila has 4 cats named Madison, Liam, Ciera, and Lorilei. Laila wants to buy each cat a new toy. The toy she wants to buy each cat costs $5.25. How much will Laila spend if she buys all 4 of her cats this toy? 

$21.00

400

When adding and subtracting decimals you put the bigger number on top.

True

400

17.82 + 3.66=

21.48

400

0.55-0.44=

0.11 or 11

400

2.22+3.33=

5.55

400

                 !!!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? 

$12.65

500

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!

500

11.7 + 2.81=

14.51

500

5.65-2.33=

3.32

500

2.55+6.42=

8.97

500

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

978.18 minutes 

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