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
27 + 20 = ______
30 − 10 = ______
84 + 20 = ______
56 + 10 = ______
32 − 10 = ______
69 + 20 = ______
76 + 20 = ______
48 + 20 = ______
89 + 20 = ______
9 × 10 = ______
46 + 20 = ______
24 + 10 = ______
73 + 20 = ______
2 × 10 = ______
47 − 10 = ______
5 × 10 = ______
77 − 10 = ______
52 − 10 = ______
55 − 10 = ______
66 + 20 = ______