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
20 + 20 = ______
81 + 20 = ______
77 + 20 = ______
29 + 20 = ______
9 × 10 = ______
94 − 10 = ______
1 × 10 = ______
26 − 10 = ______
31 + 20 = ______
22 + 10 = ______
33 + 10 = ______
56 − 10 = ______
37 + 10 = ______
50 − 10 = ______
54 − 10 = ______
28 + 10 = ______
89 − 10 = ______
2 × 10 = ______
52 − 10 = ______
67 + 10 = ______
