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
82 − 10 = ______
20 + 20 = ______
6 × 10 = ______
77 − 10 = ______
3 × 10 = ______
80 + 20 = ______
50 − 10 = ______
2 × 10 = ______
48 + 20 = ______
7 × 10 = ______
4 × 10 = ______
63 − 10 = ______
44 − 10 = ______
25 + 10 = ______
47 − 10 = ______
1 × 10 = ______
5 × 10 = ______
23 + 10 = ______
73 − 10 = ______
65 + 20 = ______
