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
36 + 20 = ______
38 − 10 = ______
4 × 10 = ______
39 + 10 = ______
52 − 10 = ______
16 + 10 = ______
51 + 10 = ______
44 + 20 = ______
40 + 20 = ______
74 − 10 = ______
1 × 10 = ______
61 + 10 = ______
7 × 10 = ______
27 + 20 = ______
9 × 10 = ______
85 − 10 = ______
54 − 10 = ______
53 + 20 = ______
46 − 10 = ______
69 − 10 = ______