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
1 × 10 = ______
18 + 20 = ______
30 − 10 = ______
74 + 10 = ______
66 + 20 = ______
47 + 10 = ______
62 − 10 = ______
52 + 10 = ______
69 + 20 = ______
56 + 20 = ______
80 − 10 = ______
2 × 10 = ______
23 + 20 = ______
5 × 10 = ______
42 + 20 = ______
9 × 10 = ______
39 + 20 = ______
6 × 10 = ______
7 × 10 = ______
67 + 20 = ______
