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
54 − 10 = ______
60 + 20 = ______
80 + 10 = ______
71 + 20 = ______
16 + 10 = ______
59 − 10 = ______
77 − 10 = ______
5 × 10 = ______
58 + 20 = ______
1 × 10 = ______
35 − 10 = ______
32 − 10 = ______
18 + 20 = ______
62 + 10 = ______
56 + 20 = ______
11 + 10 = ______
37 − 10 = ______
6 × 10 = ______
7 × 10 = ______
72 − 10 = ______
