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
5 × 10 = ______
50 + 10 = ______
26 + 20 = ______
84 + 10 = ______
17 + 20 = ______
2 × 10 = ______
96 − 10 = ______
59 − 10 = ______
25 + 20 = ______
1 × 10 = ______
4 × 10 = ______
82 + 20 = ______
74 − 10 = ______
57 + 20 = ______
9 × 10 = ______
80 − 10 = ______
3 × 10 = ______
24 + 10 = ______
31 + 10 = ______
36 + 20 = ______
