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
2 × 10 = ______
39 + 10 = ______
99 − 10 = ______
32 − 10 = ______
6 × 10 = ______
87 + 20 = ______
4 × 10 = ______
64 + 10 = ______
58 − 10 = ______
38 + 20 = ______
51 − 10 = ______
7 × 10 = ______
1 × 10 = ______
89 − 10 = ______
74 + 20 = ______
72 + 10 = ______
27 + 10 = ______
81 − 10 = ______
54 + 20 = ______
93 − 10 = ______
