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
41 − 10 = ______
3 × 10 = ______
25 + 10 = ______
15 + 20 = ______
89 + 10 = ______
47 + 20 = ______
92 − 10 = ______
64 + 20 = ______
98 − 10 = ______
8 × 10 = ______
91 − 10 = ______
82 + 20 = ______
73 + 20 = ______
13 + 10 = ______
31 + 20 = ______
39 − 10 = ______
64 − 10 = ______
81 + 10 = ______
4 × 10 = ______
6 × 10 = ______
