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
60 + 10 = ______
86 − 10 = ______
34 + 20 = ______
46 + 10 = ______
68 + 20 = ______
4 × 10 = ______
2 × 10 = ______
89 + 10 = ______
46 + 20 = ______
51 − 10 = ______
65 + 10 = ______
37 + 20 = ______
33 − 10 = ______
39 − 10 = ______
75 + 20 = ______
54 + 10 = ______
24 − 10 = ______
1 × 10 = ______
82 + 20 = ______
50 + 10 = ______
