Addition Worksheet 1

1 a.   

_________ + 100 = 800

1 b.   

200 + _________ = 300

2 a.   

_________ + 500 = 1400

2 b.   

_________ + 100 = 1000

3 a.   

_________ + 1000 = 1900

3 b.   

_________ + 0 = 700

4 a.   

0 + _________ = 500

4 b.   

600 + _________ = 900

5 a.   

_________ + 600 = 1300

5 b.   

_________ + 100 = 1100

6 a.   

0 + _________ = 600

6 b.   

_________ + 0 = 800

7 a.   

_________ + 900 = 1200

7 b.   

_________ + 200 = 400

8 a.   

_________ + 600 = 1100

8 b.   

300 + _________ = 500

9 a.   

_________ + 300 = 300

9 b.   

900 + _________ = 1700

10 a.   

_________ + 0 = 500

10 b.   

_________ + 0 = 1000

 

Answer Key

 

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