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
6 × 10 = ______
34 + 20 = ______
18 + 10 = ______
89 + 20 = ______
82 − 10 = ______
1 × 10 = ______
85 + 20 = ______
77 − 10 = ______
4 × 10 = ______
41 − 10 = ______
7 × 10 = ______
96 − 10 = ______
25 + 20 = ______
13 + 20 = ______
70 + 20 = ______
3 × 10 = ______
11 + 10 = ______
30 − 10 = ______
54 + 20 = ______
42 + 20 = ______
