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
55 + 20 = ______
95 − 10 = ______
77 − 10 = ______
41 − 10 = ______
7 × 10 = ______
27 + 20 = ______
70 + 10 = ______
68 + 10 = ______
15 + 10 = ______
80 + 20 = ______
8 × 10 = ______
87 + 10 = ______
4 × 10 = ______
5 × 10 = ______
1 × 10 = ______
63 − 10 = ______
60 + 20 = ______
84 − 10 = ______
32 − 10 = ______
17 + 10 = ______
