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
89 + 20 = ______
17 + 20 = ______
1 × 10 = ______
33 + 10 = ______
4 × 10 = ______
68 + 10 = ______
78 + 10 = ______
83 + 10 = ______
77 + 10 = ______
52 + 20 = ______
63 + 10 = ______
35 + 20 = ______
88 + 20 = ______
84 + 10 = ______
79 − 10 = ______
67 + 20 = ______
78 − 10 = ______
79 + 10 = ______
5 × 10 = ______
7 × 10 = ______
