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
41 + 20 = ______
42 + 20 = ______
46 + 10 = ______
20 + 20 = ______
17 + 10 = ______
92 − 10 = ______
49 − 10 = ______
53 + 20 = ______
2 × 10 = ______
36 + 10 = ______
37 − 10 = ______
6 × 10 = ______
34 + 20 = ______
30 + 10 = ______
4 × 10 = ______
56 − 10 = ______
20 + 10 = ______
14 + 20 = ______
64 + 10 = ______
55 + 10 = ______
