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
62 − 10 = ______
49 + 20 = ______
5 × 10 = ______
82 + 10 = ______
78 + 10 = ______
80 + 10 = ______
61 − 10 = ______
47 − 10 = ______
13 + 20 = ______
31 + 10 = ______
32 − 10 = ______
4 × 10 = ______
80 + 20 = ______
3 × 10 = ______
63 − 10 = ______
69 + 20 = ______
68 + 20 = ______
7 × 10 = ______
44 + 20 = ______
68 + 10 = ______
