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
77 − 10 = ______
94 − 10 = ______
72 + 20 = ______
2 × 10 = ______
41 + 10 = ______
69 + 20 = ______
86 + 10 = ______
89 − 10 = ______
57 + 20 = ______
9 × 10 = ______
16 + 10 = ______
29 + 10 = ______
7 × 10 = ______
99 − 10 = ______
44 + 20 = ______
48 − 10 = ______
62 + 10 = ______
40 + 20 = ______
81 + 20 = ______
82 + 10 = ______
