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
69 + 10 = ______
72 + 10 = ______
29 + 20 = ______
79 − 10 = ______
35 + 20 = ______
71 − 10 = ______
89 + 10 = ______
26 + 20 = ______
81 + 10 = ______
58 + 20 = ______
5 × 10 = ______
19 + 10 = ______
1 × 10 = ______
6 × 10 = ______
4 × 10 = ______
67 − 10 = ______
94 − 10 = ______
24 + 20 = ______
43 + 20 = ______
7 × 10 = ______
