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
31 + 20 = ______
88 + 20 = ______
86 + 20 = ______
74 + 10 = ______
91 − 10 = ______
64 − 10 = ______
96 − 10 = ______
43 + 10 = ______
36 − 10 = ______
2 × 10 = ______
35 + 20 = ______
9 × 10 = ______
46 + 10 = ______
82 + 10 = ______
47 + 10 = ______
35 + 10 = ______
38 + 10 = ______
4 × 10 = ______
45 + 20 = ______
90 − 10 = ______
