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
20 + 20 = ______
31 + 20 = ______
61 + 10 = ______
56 + 20 = ______
68 − 10 = ______
57 − 10 = ______
77 + 20 = ______
31 + 10 = ______
3 × 10 = ______
29 + 20 = ______
9 × 10 = ______
8 × 10 = ______
71 − 10 = ______
4 × 10 = ______
97 − 10 = ______
50 + 10 = ______
46 − 10 = ______
33 + 10 = ______
55 + 20 = ______
17 + 20 = ______
