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
59 − 10 = ______
74 − 10 = ______
8 × 10 = ______
43 − 10 = ______
62 − 10 = ______
72 + 20 = ______
3 × 10 = ______
78 − 10 = ______
26 + 10 = ______
63 − 10 = ______
13 + 10 = ______
79 + 20 = ______
71 + 10 = ______
54 + 20 = ______
82 + 10 = ______
22 + 20 = ______
79 + 10 = ______
2 × 10 = ______
5 × 10 = ______
4 × 10 = ______
