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
86 − 10 = ______
61 + 20 = ______
76 + 10 = ______
77 + 10 = ______
47 − 10 = ______
45 + 20 = ______
23 − 10 = ______
21 − 10 = ______
81 + 20 = ______
8 × 10 = ______
72 + 20 = ______
68 + 10 = ______
31 + 20 = ______
56 + 20 = ______
3 × 10 = ______
1 × 10 = ______
23 + 10 = ______
18 + 20 = ______
58 − 10 = ______
51 + 20 = ______
