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
50 + 20 = ______
24 + 10 = ______
63 + 10 = ______
51 + 20 = ______
21 + 10 = ______
38 + 10 = ______
1 × 10 = ______
9 × 10 = ______
35 + 10 = ______
2 × 10 = ______
46 − 10 = ______
74 + 20 = ______
86 + 20 = ______
20 + 20 = ______
73 + 20 = ______
66 − 10 = ______
29 + 10 = ______
6 × 10 = ______
72 − 10 = ______
21 − 10 = ______
