Name: ___________________________ Addition: 3-digits w/ Regrouping
Monster Math
Three-Digit Addition
a. b.
2 8 6 7 9 4
+ 1 0 9 + 1 5 2
c. d.
8 3 9 4 4 8
+ 6 4 5 + 8 4
e. f.
3 0 7 1 2 5
+ 3 1 6 + 5 6 5
h.
9 8 9 7 7 7
g.
+ 3 3 + 9 9 9
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Name: ___________________________ Addition: 3-digits w/ Regrouping
Monster Math - Answer Key
Three-Digit Addition
a. b.
2 8 6 7 9 4
+ 1 0 9 + 1 5 2
3 9 5 9 4 6
c. d.
8 3 9 4 4 8
+ 6 4 5 + 8 4
1, 4 8 4 5 3 2
e. f.
3 0 7 1 2 5
+ 3 1 6 + 5 6 5
6 2 3 6 9 0
h.
9 8 9 7 7 7
g.
+ 3 3 + 9 9 9
1, 0 2 2 1, 7 7 6
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