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
7 × 10 = ______
75 + 10 = ______
2 × 10 = ______
4 × 10 = ______
31 + 20 = ______
97 − 10 = ______
35 − 10 = ______
75 + 20 = ______
59 + 20 = ______
11 + 20 = ______
77 + 10 = ______
78 − 10 = ______
36 + 20 = ______
80 − 10 = ______
34 + 20 = ______
54 − 10 = ______
1 × 10 = ______
9 × 10 = ______
3 × 10 = ______
74 − 10 = ______
