Addition Worksheet 1

1 a.   

 _________ + 400 = 700

1 b.   

 1000 + _________ = 1700

2 a.   

 _________ + 300 = 1000

2 b.   

 100 + _________ = 300

3 a.   

 _________ + 400 = 1300

3 b.   

 _________ + 1000 = 1800

4 a.   

 _________ + 500 = 1500

4 b.   

 1000 + ____________ = 2000

5 a.   

 200 + _________ = 400

5 b.   

 _________ + 300 = 1200

6 a.   

 500 + _________ = 1500

6 b.   

 900 + _________ = 1200

7 a.   

 0 + _________ = 500

7 b.   

 _________ + 900 = 1600

8 a.   

 900 + _________ = 1500

8 b.   

 _________ + 1000 = 1700

9 a.   

 700 + _________ = 1000

9 b.   

 700 + _________ = 1600

10 a.   

 600 + _________ = 1500

10 b.   

 500 + _________ = 1200

 

Answer Key

 

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