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
35 − 10 = ______
24 + 20 = ______
71 − 10 = ______
5 × 10 = ______
9 × 10 = ______
2 × 10 = ______
74 − 10 = ______
27 + 10 = ______
89 − 10 = ______
32 + 20 = ______
8 × 10 = ______
81 − 10 = ______
1 × 10 = ______
72 + 10 = ______
65 + 20 = ______
60 + 20 = ______
39 − 10 = ______
62 + 10 = ______
47 + 20 = ______
29 + 20 = ______
