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
19 + 20 = ______
57 + 20 = ______
88 − 10 = ______
69 + 10 = ______
40 + 10 = ______
55 + 10 = ______
41 − 10 = ______
5 × 10 = ______
67 + 20 = ______
1 × 10 = ______
8 × 10 = ______
43 + 20 = ______
65 − 10 = ______
11 + 10 = ______
65 + 20 = ______
71 + 20 = ______
70 + 10 = ______
63 − 10 = ______
66 + 10 = ______
83 + 20 = ______
