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
58 − 10 = ______
6 × 10 = ______
57 + 20 = ______
63 − 10 = ______
84 − 10 = ______
75 − 10 = ______
34 − 10 = ______
63 + 20 = ______
28 + 20 = ______
3 × 10 = ______
17 + 20 = ______
1 × 10 = ______
79 − 10 = ______
20 + 10 = ______
82 + 20 = ______
82 + 10 = ______
49 − 10 = ______
5 × 10 = ______
70 + 20 = ______
2 × 10 = ______
