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
6 × 10 = ______
8 × 10 = ______
95 − 10 = ______
36 − 10 = ______
4 × 10 = ______
59 − 10 = ______
7 × 10 = ______
36 + 20 = ______
67 − 10 = ______
13 + 20 = ______
73 − 10 = ______
9 × 10 = ______
44 + 20 = ______
70 + 10 = ______
49 + 10 = ______
20 + 20 = ______
44 + 10 = ______
37 − 10 = ______
82 + 20 = ______
46 + 20 = ______
