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
20 + 20 = ______
28 − 10 = ______
4 × 10 = ______
81 + 20 = ______
56 + 10 = ______
69 + 20 = ______
8 × 10 = ______
59 + 20 = ______
1 × 10 = ______
14 + 20 = ______
67 + 20 = ______
71 + 20 = ______
81 + 10 = ______
88 + 10 = ______
9 × 10 = ______
80 − 10 = ______
78 + 20 = ______
75 − 10 = ______
40 − 10 = ______
29 − 10 = ______
