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
31 + 20 = ______
4 × 10 = ______
59 − 10 = ______
44 + 10 = ______
94 − 10 = ______
5 × 10 = ______
65 − 10 = ______
83 + 10 = ______
84 + 10 = ______
66 + 10 = ______
47 − 10 = ______
6 × 10 = ______
1 × 10 = ______
89 − 10 = ______
25 − 10 = ______
22 + 10 = ______
24 + 20 = ______
66 − 10 = ______
2 × 10 = ______
82 − 10 = ______
