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
1 × 10 = ______
26 + 20 = ______
84 + 10 = ______
71 − 10 = ______
77 + 20 = ______
29 + 10 = ______
27 + 10 = ______
39 + 10 = ______
83 + 20 = ______
20 + 10 = ______
48 − 10 = ______
34 − 10 = ______
9 × 10 = ______
46 + 20 = ______
73 + 10 = ______
82 − 10 = ______
47 + 10 = ______
45 − 10 = ______
67 − 10 = ______
7 × 10 = ______
