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
94 − 10 = ______
82 − 10 = ______
52 − 10 = ______
2 × 10 = ______
1 × 10 = ______
39 + 20 = ______
63 + 10 = ______
6 × 10 = ______
40 + 10 = ______
4 × 10 = ______
64 + 10 = ______
35 − 10 = ______
89 + 10 = ______
84 + 20 = ______
62 − 10 = ______
50 + 10 = ______
67 + 10 = ______
82 + 20 = ______
30 + 20 = ______
79 + 10 = ______
