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
59 − 10 = ______
66 − 10 = ______
38 + 10 = ______
79 − 10 = ______
76 + 20 = ______
51 + 20 = ______
37 + 10 = ______
71 + 20 = ______
8 × 10 = ______
82 + 10 = ______
1 × 10 = ______
30 − 10 = ______
40 + 20 = ______
54 − 10 = ______
3 × 10 = ______
11 + 20 = ______
25 − 10 = ______
2 × 10 = ______
59 + 10 = ______
83 + 20 = ______
