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
20 + 20 = ______
44 + 20 = ______
24 − 10 = ______
6 × 10 = ______
64 + 20 = ______
5 × 10 = ______
7 × 10 = ______
94 − 10 = ______
41 + 20 = ______
9 × 10 = ______
87 − 10 = ______
8 × 10 = ______
70 + 10 = ______
63 − 10 = ______
58 − 10 = ______
51 + 10 = ______
21 + 20 = ______
99 − 10 = ______
1 × 10 = ______
62 + 20 = ______
