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
36 + 20 = ______
9 × 10 = ______
77 + 10 = ______
21 + 20 = ______
14 + 20 = ______
5 × 10 = ______
26 + 10 = ______
58 + 20 = ______
23 + 20 = ______
2 × 10 = ______
37 + 20 = ______
47 + 10 = ______
77 + 20 = ______
62 + 10 = ______
73 + 10 = ______
67 + 20 = ______
35 − 10 = ______
17 + 20 = ______
43 − 10 = ______
80 − 10 = ______
