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
80 − 10 = ______
8 × 10 = ______
26 + 10 = ______
20 + 10 = ______
25 + 10 = ______
6 × 10 = ______
24 − 10 = ______
3 × 10 = ______
21 + 10 = ______
67 + 20 = ______
82 + 20 = ______
34 + 20 = ______
7 × 10 = ______
86 + 10 = ______
54 − 10 = ______
68 + 20 = ______
97 − 10 = ______
65 + 20 = ______
78 + 20 = ______
57 − 10 = ______
