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
54 + 10 = ______
33 + 20 = ______
6 × 10 = ______
46 + 10 = ______
79 − 10 = ______
53 − 10 = ______
82 + 20 = ______
19 + 10 = ______
32 − 10 = ______
3 × 10 = ______
60 + 20 = ______
64 − 10 = ______
9 × 10 = ______
50 + 10 = ______
71 + 10 = ______
78 + 10 = ______
73 + 10 = ______
1 × 10 = ______
69 − 10 = ______
8 × 10 = ______
