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
50 + 10 = ______
55 − 10 = ______
3 × 10 = ______
65 + 20 = ______
51 − 10 = ______
9 × 10 = ______
27 − 10 = ______
71 − 10 = ______
4 × 10 = ______
70 − 10 = ______
43 + 20 = ______
91 − 10 = ______
54 + 10 = ______
45 − 10 = ______
35 − 10 = ______
2 × 10 = ______
7 × 10 = ______
75 + 20 = ______
69 − 10 = ______
99 − 10 = ______
