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
53 + 10 = ______
84 + 10 = ______
20 + 20 = ______
76 − 10 = ______
69 + 10 = ______
78 − 10 = ______
51 + 10 = ______
79 + 10 = ______
1 × 10 = ______
66 + 20 = ______
85 + 20 = ______
43 + 20 = ______
32 + 20 = ______
25 + 10 = ______
35 − 10 = ______
68 + 20 = ______
17 + 10 = ______
21 + 20 = ______
7 × 10 = ______
70 + 20 = ______
