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
58 + 20 = ______
44 + 10 = ______
83 + 10 = ______
77 + 10 = ______
55 + 20 = ______
86 + 20 = ______
81 − 10 = ______
78 + 20 = ______
18 + 10 = ______
62 − 10 = ______
6 × 10 = ______
2 × 10 = ______
34 + 10 = ______
21 − 10 = ______
32 − 10 = ______
57 − 10 = ______
44 − 10 = ______
72 + 20 = ______
3 × 10 = ______
77 + 20 = ______
