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
8 × 10 = ______
42 − 10 = ______
26 − 10 = ______
41 + 10 = ______
89 − 10 = ______
75 + 20 = ______
27 + 10 = ______
7 × 10 = ______
38 + 10 = ______
6 × 10 = ______
9 × 10 = ______
1 × 10 = ______
80 + 20 = ______
66 + 20 = ______
5 × 10 = ______
89 + 10 = ______
56 + 10 = ______
71 + 20 = ______
21 − 10 = ______
63 + 20 = ______
