Grade 2 Math: Addition and Subtraction 4

Solve these problems in your head and write the answers.


a. 40 + 30   = _______


b. 200 + 300 = _______


c. 80 + 70   = _______


d. 70 - 30   = _______


e. 20 + 7    = _______


f. 400 - 100 = _______


g. 80 + 5    = _______


h. 31 + 6    = _______


i. 42 + 10   = _______


j. 49 - 7    = _______


k. 38 - 10   = _______


l. 90 - 4    = _______