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
8 × 10 = ______
48 + 20 = ______
78 + 10 = ______
53 + 20 = ______
97 − 10 = ______
9 × 10 = ______
76 + 10 = ______
51 + 20 = ______
81 − 10 = ______
80 + 10 = ______
81 + 20 = ______
5 × 10 = ______
1 × 10 = ______
89 − 10 = ______
38 − 10 = ______
82 − 10 = ______
2 × 10 = ______
59 + 10 = ______
51 − 10 = ______
72 + 20 = ______
