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
69 + 20 = ______
79 − 10 = ______
89 − 10 = ______
35 + 10 = ______
75 − 10 = ______
76 + 10 = ______
18 + 10 = ______
55 + 10 = ______
73 + 10 = ______
54 + 10 = ______
72 + 20 = ______
56 + 20 = ______
66 + 10 = ______
64 − 10 = ______
8 × 10 = ______
7 × 10 = ______
6 × 10 = ______
49 + 20 = ______
32 + 10 = ______
9 × 10 = ______
