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
37 + 10 = ______
3 × 10 = ______
86 + 20 = ______
15 + 20 = ______
72 + 20 = ______
80 + 20 = ______
1 × 10 = ______
23 − 10 = ______
9 × 10 = ______
39 + 10 = ______
5 × 10 = ______
58 − 10 = ______
50 + 20 = ______
63 + 10 = ______
82 − 10 = ______
31 + 20 = ______
8 × 10 = ______
25 − 10 = ______
34 − 10 = ______
57 − 10 = ______
