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
33 − 10 = ______
34 − 10 = ______
1 × 10 = ______
80 − 10 = ______
82 + 20 = ______
9 × 10 = ______
82 + 10 = ______
85 + 10 = ______
88 − 10 = ______
4 × 10 = ______
47 + 20 = ______
7 × 10 = ______
60 + 20 = ______
53 − 10 = ______
42 + 20 = ______
8 × 10 = ______
25 + 10 = ______
98 − 10 = ______
36 + 20 = ______
47 + 10 = ______
