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
3 × 10 = ______
35 − 10 = ______
6 × 10 = ______
47 − 10 = ______
4 × 10 = ______
90 − 10 = ______
40 + 10 = ______
2 × 10 = ______
17 + 20 = ______
85 + 10 = ______
45 + 20 = ______
28 − 10 = ______
72 + 20 = ______
22 − 10 = ______
85 + 20 = ______
95 − 10 = ______
51 − 10 = ______
91 − 10 = ______
51 + 10 = ______
64 − 10 = ______
