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 = ______
17 + 10 = ______
3 × 10 = ______
61 − 10 = ______
84 − 10 = ______
20 + 20 = ______
2 × 10 = ______
40 + 20 = ______
58 + 20 = ______
47 − 10 = ______
9 × 10 = ______
60 + 10 = ______
35 + 20 = ______
17 + 20 = ______
58 − 10 = ______
77 + 20 = ______
62 − 10 = ______
37 − 10 = ______
57 + 20 = ______
46 + 10 = ______
