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 = ______
53 + 10 = ______
61 − 10 = ______
2 × 10 = ______
41 + 20 = ______
81 + 10 = ______
59 + 10 = ______
56 + 20 = ______
7 × 10 = ______
4 × 10 = ______
89 + 10 = ______
19 + 10 = ______
20 + 20 = ______
67 − 10 = ______
34 − 10 = ______
99 − 10 = ______
78 + 10 = ______
49 − 10 = ______
27 + 10 = ______
46 + 20 = ______
