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
51 + 10 = ______
1 × 10 = ______
47 + 20 = ______
67 + 20 = ______
29 + 10 = ______
87 + 10 = ______
9 × 10 = ______
15 + 20 = ______
75 − 10 = ______
54 − 10 = ______
65 + 10 = ______
91 − 10 = ______
52 + 20 = ______
2 × 10 = ______
7 × 10 = ______
76 + 10 = ______
68 + 10 = ______
21 + 10 = ______
89 + 10 = ______
43 + 10 = ______
