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
13 + 20 = ______
74 + 20 = ______
50 + 20 = ______
18 + 20 = ______
30 + 10 = ______
6 × 10 = ______
85 + 10 = ______
47 − 10 = ______
70 + 20 = ______
81 + 10 = ______
65 − 10 = ______
19 + 10 = ______
42 + 10 = ______
7 × 10 = ______
4 × 10 = ______
20 + 10 = ______
99 − 10 = ______
39 + 20 = ______
80 + 20 = ______
2 × 10 = ______
