Addition Worksheet 1

1 a.   

_________ + 400 = 1000

1 b.   

_________ + 1000 = 1600

2 a.   

200 + _________ = 200

2 b.   

0 + ___ = 0

3 a.   

600 + _________ = 1600

3 b.   

300 + _________ = 600

4 a.   

_________ + 400 = 1100

4 b.   

900 + _________ = 1700

5 a.   

200 + _________ = 800

5 b.   

_________ + 0 = 500

6 a.   

800 + _________ = 1800

6 b.   

1000 + _________ = 1900

7 a.   

800 + _________ = 1700

7 b.   

800 + _________ = 800

8 a.   

_________ + 400 = 900

8 b.   

_________ + 500 = 900

9 a.   

700 + _________ = 1100

9 b.   

800 + _________ = 1000

10 a.   

100 + _________ = 900

10 b.   

100 + _________ = 1100

 

Answer Key

 

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