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 + 10 = ______
9 × 10 = ______
32 − 10 = ______
3 × 10 = ______
25 − 10 = ______
28 − 10 = ______
86 + 20 = ______
26 + 20 = ______
65 − 10 = ______
8 × 10 = ______
6 × 10 = ______
22 + 10 = ______
37 + 10 = ______
78 − 10 = ______
99 − 10 = ______
89 + 10 = ______
5 × 10 = ______
88 + 20 = ______
4 × 10 = ______
28 + 10 = ______
