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
2 × 10 = ______
22 + 10 = ______
64 + 10 = ______
51 + 20 = ______
5 × 10 = ______
8 × 10 = ______
3 × 10 = ______
47 + 10 = ______
6 × 10 = ______
55 − 10 = ______
30 + 10 = ______
62 + 20 = ______
75 + 20 = ______
65 + 10 = ______
66 + 10 = ______
53 − 10 = ______
47 + 20 = ______
25 − 10 = ______
63 − 10 = ______
77 + 20 = ______
