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
29 + 20 = ______
3 × 10 = ______
78 + 20 = ______
85 + 10 = ______
58 + 20 = ______
32 + 10 = ______
5 × 10 = ______
26 + 20 = ______
71 − 10 = ______
80 + 20 = ______
82 + 20 = ______
94 − 10 = ______
19 + 20 = ______
1 × 10 = ______
50 − 10 = ______
8 × 10 = ______
9 × 10 = ______
81 + 20 = ______
69 + 20 = ______
67 + 20 = ______
