Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
60 − 10 = ______
7 × 10 = ______
1 × 10 = ______
85 − 10 = ______
6 × 10 = ______
84 + 10 = ______
57 − 10 = ______
8 × 10 = ______
88 + 10 = ______
91 − 10 = ______
79 + 10 = ______
29 + 20 = ______
32 + 10 = ______
56 + 10 = ______
49 − 10 = ______
96 − 10 = ______
5 × 10 = ______
65 + 20 = ______
89 + 20 = ______
3 × 10 = ______
