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
33 + 20 = ______
65 − 10 = ______
27 + 10 = ______
18 + 20 = ______
1 × 10 = ______
2 × 10 = ______
66 + 20 = ______
57 − 10 = ______
98 − 10 = ______
90 − 10 = ______
38 − 10 = ______
72 + 20 = ______
47 − 10 = ______
54 − 10 = ______
8 × 10 = ______
76 + 20 = ______
43 + 20 = ______
70 + 20 = ______
79 − 10 = ______
82 + 10 = ______
