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
59 + 20 = ______
31 − 10 = ______
38 − 10 = ______
51 + 10 = ______
30 − 10 = ______
77 + 10 = ______
6 × 10 = ______
29 + 10 = ______
24 + 20 = ______
97 − 10 = ______
2 × 10 = ______
50 + 10 = ______
41 + 10 = ______
62 + 20 = ______
95 − 10 = ______
53 + 20 = ______
3 × 10 = ______
9 × 10 = ______
5 × 10 = ______
85 + 10 = ______
