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
61 + 20 = ______
56 − 10 = ______
40 + 20 = ______
23 + 20 = ______
63 + 10 = ______
69 + 10 = ______
4 × 10 = ______
9 × 10 = ______
80 + 10 = ______
87 − 10 = ______
34 + 10 = ______
40 − 10 = ______
8 × 10 = ______
89 + 20 = ______
78 − 10 = ______
35 − 10 = ______
48 + 10 = ______
75 + 10 = ______
37 + 20 = ______
85 + 20 = ______
