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
66 − 10 = ______
21 + 10 = ______
76 + 10 = ______
56 + 20 = ______
88 − 10 = ______
37 + 20 = ______
41 + 10 = ______
2 × 10 = ______
5 × 10 = ______
78 + 10 = ______
32 + 10 = ______
44 + 20 = ______
49 + 10 = ______
23 + 20 = ______
6 × 10 = ______
9 × 10 = ______
35 + 20 = ______
30 − 10 = ______
4 × 10 = ______
25 + 10 = ______
