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
42 + 20 = ______
52 + 20 = ______
89 − 10 = ______
69 − 10 = ______
2 × 10 = ______
14 + 20 = ______
46 + 20 = ______
85 + 10 = ______
77 + 10 = ______
75 + 10 = ______
24 − 10 = ______
16 + 20 = ______
12 + 10 = ______
24 + 20 = ______
99 − 10 = ______
53 + 20 = ______
5 × 10 = ______
64 + 10 = ______
3 × 10 = ______
67 − 10 = ______
