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
36 + 10 = ______
39 − 10 = ______
78 + 20 = ______
1 × 10 = ______
4 × 10 = ______
46 + 10 = ______
2 × 10 = ______
52 − 10 = ______
3 × 10 = ______
50 + 20 = ______
51 + 10 = ______
82 + 10 = ______
87 − 10 = ______
53 + 10 = ______
64 − 10 = ______
7 × 10 = ______
29 + 10 = ______
63 + 10 = ______
47 + 20 = ______
95 − 10 = ______
