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
73 + 10 = ______
81 + 10 = ______
71 + 20 = ______
9 × 10 = ______
49 − 10 = ______
3 × 10 = ______
27 + 20 = ______
78 + 20 = ______
51 + 20 = ______
1 × 10 = ______
82 + 20 = ______
68 + 20 = ______
72 − 10 = ______
56 − 10 = ______
48 + 20 = ______
6 × 10 = ______
7 × 10 = ______
70 + 20 = ______
2 × 10 = ______
57 + 10 = ______
