Mental Math Worksheet
Recommended for 1st Grade — 5th Grade
Mental Math Worksheet
Name: ____________________Date: ____________
Instructions: Using mental strategies like making ten, doubling, and compensation to compute quickly.
20 problems
79 + 10 = ______
89 + 10 = ______
76 − 10 = ______
21 − 10 = ______
40 − 10 = ______
75 + 20 = ______
43 + 20 = ______
82 + 20 = ______
39 + 10 = ______
9 × 10 = ______
8 × 10 = ______
48 − 10 = ______
11 + 20 = ______
6 × 10 = ______
68 − 10 = ______
22 + 10 = ______
66 − 10 = ______
60 − 10 = ______
3 × 10 = ______
95 − 10 = ______
