Addition Worksheet 1

1 a.   

_________ + 900 = 1500

1 b.   

700 + _________ = 1000

2 a.   

_________ + 0 = 500

2 b.   

700 + _________ = 800

3 a.   

900 + _________ = 1300

3 b.   

_________ + 600 = 1100

4 a.   

700 + _________ = 1600

4 b.   

400 + _________ = 900

5 a.   

300 + _________ = 500

5 b.   

900 + _________ = 1700

6 a.   

300 + _________ = 800

6 b.   

_________ + 500 = 600

7 a.   

200 + _________ = 400

7 b.   

700 + _________ = 1400

8 a.   

_________ + 900 = 900

8 b.   

800 + _________ = 1400

9 a.   

600 + _________ = 1000

9 b.   

300 + _________ = 900

10 a.   

400 + _________ = 1300

10 b.   

500 + _________ = 1100

 

Answer Key

 

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