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
13 + 20 = ______
3 × 10 = ______
94 − 10 = ______
66 − 10 = ______
41 + 10 = ______
99 − 10 = ______
55 + 20 = ______
26 − 10 = ______
57 + 20 = ______
87 + 20 = ______
56 − 10 = ______
14 + 10 = ______
35 + 10 = ______
79 + 10 = ______
67 + 10 = ______
32 + 20 = ______
75 + 20 = ______
82 + 20 = ______
71 + 20 = ______
1 × 10 = ______
