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
65 + 20 = ______
47 − 10 = ______
86 + 20 = ______
81 − 10 = ______
72 + 20 = ______
57 + 10 = ______
4 × 10 = ______
31 + 20 = ______
92 − 10 = ______
38 + 10 = ______
16 + 20 = ______
62 + 20 = ______
50 + 10 = ______
88 − 10 = ______
27 − 10 = ______
46 + 10 = ______
6 × 10 = ______
77 + 10 = ______
61 + 10 = ______
34 + 20 = ______
