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
41 − 10 = ______
11 + 10 = ______
25 + 20 = ______
98 − 10 = ______
2 × 10 = ______
78 + 10 = ______
81 + 10 = ______
81 + 20 = ______
72 − 10 = ______
24 + 20 = ______
65 − 10 = ______
24 + 10 = ______
31 − 10 = ______
54 + 10 = ______
57 + 20 = ______
45 + 20 = ______
43 + 20 = ______
6 × 10 = ______
3 × 10 = ______
8 × 10 = ______
