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
20 + 10 = ______
73 + 20 = ______
53 − 10 = ______
1 × 10 = ______
89 + 10 = ______
12 + 10 = ______
43 + 10 = ______
59 − 10 = ______
5 × 10 = ______
53 + 10 = ______
66 + 10 = ______
46 + 20 = ______
2 × 10 = ______
8 × 10 = ______
82 − 10 = ______
37 − 10 = ______
23 − 10 = ______
7 × 10 = ______
84 + 10 = ______
85 − 10 = ______
