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 = ______
36 + 20 = ______
43 + 20 = ______
71 + 20 = ______
8 × 10 = ______
35 + 10 = ______
4 × 10 = ______
66 + 10 = ______
51 − 10 = ______
90 − 10 = ______
67 − 10 = ______
6 × 10 = ______
67 + 20 = ______
2 × 10 = ______
28 + 10 = ______
93 − 10 = ______
79 + 20 = ______
77 − 10 = ______
50 + 10 = ______
42 − 10 = ______
