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
71 + 10 = ______
59 + 20 = ______
3 × 10 = ______
2 × 10 = ______
9 × 10 = ______
11 + 20 = ______
46 − 10 = ______
68 + 20 = ______
15 + 20 = ______
45 + 20 = ______
21 + 10 = ______
85 + 10 = ______
44 + 20 = ______
1 × 10 = ______
26 + 10 = ______
5 × 10 = ______
4 × 10 = ______
77 + 10 = ______
37 + 10 = ______
37 + 20 = ______
