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 + 20 = ______
37 + 10 = ______
79 + 20 = ______
4 × 10 = ______
75 − 10 = ______
7 × 10 = ______
26 − 10 = ______
73 + 10 = ______
9 × 10 = ______
96 − 10 = ______
2 × 10 = ______
32 + 20 = ______
26 + 20 = ______
62 − 10 = ______
37 − 10 = ______
30 − 10 = ______
27 − 10 = ______
54 − 10 = ______
89 + 10 = ______
8 × 10 = ______
