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
62 + 20 = ______
18 + 20 = ______
59 − 10 = ______
47 − 10 = ______
13 + 20 = ______
55 + 10 = ______
31 − 10 = ______
5 × 10 = ______
6 × 10 = ______
59 + 20 = ______
7 × 10 = ______
1 × 10 = ______
33 − 10 = ______
30 + 10 = ______
2 × 10 = ______
36 + 10 = ______
3 × 10 = ______
77 − 10 = ______
53 + 10 = ______
15 + 20 = ______
