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
78 + 20 = ______
1 × 10 = ______
56 + 20 = ______
73 + 10 = ______
66 + 20 = ______
88 + 10 = ______
84 + 10 = ______
78 + 10 = ______
7 × 10 = ______
41 + 10 = ______
2 × 10 = ______
17 + 20 = ______
52 + 10 = ______
72 + 10 = ______
71 + 10 = ______
85 + 20 = ______
57 + 20 = ______
95 − 10 = ______
62 + 10 = ______
44 − 10 = ______
