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
41 + 10 = ______
32 − 10 = ______
30 + 10 = ______
31 + 20 = ______
7 × 10 = ______
60 − 10 = ______
58 − 10 = ______
65 + 10 = ______
83 + 10 = ______
25 + 10 = ______
47 + 20 = ______
89 + 10 = ______
36 + 20 = ______
23 + 10 = ______
2 × 10 = ______
81 − 10 = ______
82 + 10 = ______
67 − 10 = ______
3 × 10 = ______
87 − 10 = ______
