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
1 × 10 = ______
5 × 10 = ______
2 × 10 = ______
7 × 10 = ______
89 − 10 = ______
8 × 10 = ______
67 + 20 = ______
63 + 10 = ______
3 × 10 = ______
24 − 10 = ______
32 + 10 = ______
9 × 10 = ______
50 + 20 = ______
54 + 20 = ______
72 − 10 = ______
65 + 20 = ______
71 + 10 = ______
80 + 10 = ______
79 − 10 = ______
15 + 10 = ______
