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
5 × 10 = ______
1 × 10 = ______
87 + 20 = ______
33 + 20 = ______
2 × 10 = ______
76 + 20 = ______
41 − 10 = ______
39 − 10 = ______
7 × 10 = ______
31 − 10 = ______
4 × 10 = ______
49 + 10 = ______
73 + 20 = ______
3 × 10 = ______
80 − 10 = ______
50 + 20 = ______
12 + 20 = ______
42 − 10 = ______
62 + 20 = ______
40 − 10 = ______
