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
95 − 10 = ______
70 + 20 = ______
25 + 20 = ______
31 + 10 = ______
74 + 20 = ______
53 − 10 = ______
31 + 20 = ______
73 + 10 = ______
81 − 10 = ______
2 × 10 = ______
56 + 20 = ______
11 + 10 = ______
46 + 10 = ______
73 − 10 = ______
78 + 20 = ______
49 − 10 = ______
82 + 20 = ______
46 − 10 = ______
3 × 10 = ______
32 + 20 = ______
