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
81 + 20 = ______
69 + 10 = ______
80 − 10 = ______
3 × 10 = ______
39 + 10 = ______
39 − 10 = ______
22 + 20 = ______
2 × 10 = ______
64 − 10 = ______
82 − 10 = ______
97 − 10 = ______
51 + 20 = ______
4 × 10 = ______
18 + 20 = ______
8 × 10 = ______
34 + 20 = ______
90 − 10 = ______
21 − 10 = ______
60 + 10 = ______
11 + 10 = ______
