Addition Worksheet 1

1 a.   

 _________ + 1000 = 1000

1 b.   

 _________ + 200 = 400

2 a.   

 _________ + 1000 = 1100

2 b.   

 _________ + 100 = 300

3 a.   

 100 + _________ = 800

3 b.   

 300 + _________ = 900

4 a.   

 _________ + 600 = 1300

4 b.   

 _________ + 400 = 1400

5 a.   

 _________ + 200 = 1000

5 b.   

 300 + _________ = 600

6 a.   

 _________ + 1000 = 1700

6 b.   

 _________ + 100 = 900

7 a.   

 _________ + 300 = 500

7 b.   

 _________ + 100 = 1000

8 a.   

 500 + _________ = 1000

8 b.   

 _________ + 800 = 1700

9 a.   

 _________ + 200 = 200

9 b.   

 900 + _________ = 1100

10 a.   

 _________ + 800 = 1500

10 b.   

 _________ + 700 = 1200

 

Answer Key

 

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