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
67 − 10 = ______
56 + 10 = ______
9 × 10 = ______
70 + 10 = ______
7 × 10 = ______
3 × 10 = ______
36 + 20 = ______
5 × 10 = ______
43 + 10 = ______
4 × 10 = ______
57 + 10 = ______
74 − 10 = ______
42 + 10 = ______
75 + 20 = ______
21 + 20 = ______
80 + 20 = ______
41 + 20 = ______
71 + 10 = ______
84 + 10 = ______
69 + 10 = ______
