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
67 + 20 = ______
3 × 10 = ______
7 × 10 = ______
65 + 20 = ______
2 × 10 = ______
81 + 20 = ______
17 + 20 = ______
63 + 20 = ______
31 − 10 = ______
70 + 10 = ______
34 − 10 = ______
54 + 20 = ______
8 × 10 = ______
99 − 10 = ______
71 + 20 = ______
60 − 10 = ______
5 × 10 = ______
32 + 20 = ______
42 + 10 = ______
6 × 10 = ______
