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 = ______
89 + 10 = ______
31 − 10 = ______
37 + 10 = ______
3 × 10 = ______
82 − 10 = ______
79 + 10 = ______
7 × 10 = ______
95 − 10 = ______
89 + 20 = ______
74 + 20 = ______
60 + 20 = ______
34 − 10 = ______
32 − 10 = ______
4 × 10 = ______
44 − 10 = ______
8 × 10 = ______
5 × 10 = ______
9 × 10 = ______
89 − 10 = ______
