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
93 − 10 = ______
19 + 10 = ______
77 − 10 = ______
1 × 10 = ______
66 + 10 = ______
15 + 20 = ______
9 × 10 = ______
74 + 20 = ______
33 + 20 = ______
37 + 20 = ______
4 × 10 = ______
52 + 10 = ______
6 × 10 = ______
82 + 10 = ______
67 + 20 = ______
32 + 10 = ______
49 − 10 = ______
60 − 10 = ______
2 × 10 = ______
38 + 10 = ______
