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
5 × 10 = ______
29 − 10 = ______
62 − 10 = ______
6 × 10 = ______
36 + 10 = ______
2 × 10 = ______
9 × 10 = ______
8 × 10 = ______
89 + 10 = ______
80 + 20 = ______
44 − 10 = ______
78 + 10 = ______
4 × 10 = ______
82 + 10 = ______
17 + 20 = ______
34 + 20 = ______
22 + 20 = ______
71 + 10 = ______
80 − 10 = ______
77 + 20 = ______
