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
81 + 20 = ______
57 − 10 = ______
4 × 10 = ______
68 + 10 = ______
73 − 10 = ______
6 × 10 = ______
47 + 10 = ______
1 × 10 = ______
85 + 10 = ______
29 + 20 = ______
70 + 10 = ______
72 + 20 = ______
80 + 10 = ______
36 + 10 = ______
87 − 10 = ______
31 + 10 = ______
5 × 10 = ______
9 × 10 = ______
2 × 10 = ______
74 − 10 = ______
