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
82 − 10 = ______
48 − 10 = ______
11 + 10 = ______
36 − 10 = ______
72 − 10 = ______
49 + 20 = ______
41 + 20 = ______
3 × 10 = ______
39 + 10 = ______
51 − 10 = ______
88 + 10 = ______
34 − 10 = ______
52 + 10 = ______
2 × 10 = ______
46 + 10 = ______
87 + 10 = ______
47 − 10 = ______
55 + 10 = ______
88 + 20 = ______
89 + 10 = ______
