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
16 + 10 = ______
72 + 20 = ______
2 × 10 = ______
31 + 10 = ______
89 + 20 = ______
68 + 10 = ______
7 × 10 = ______
3 × 10 = ______
27 − 10 = ______
67 + 10 = ______
32 + 20 = ______
66 − 10 = ______
1 × 10 = ______
5 × 10 = ______
89 + 10 = ______
25 − 10 = ______
4 × 10 = ______
70 + 20 = ______
89 − 10 = ______
73 − 10 = ______
