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
2 × 10 = ______
47 + 20 = ______
3 × 10 = ______
8 × 10 = ______
66 − 10 = ______
11 + 10 = ______
83 + 10 = ______
41 − 10 = ______
9 × 10 = ______
89 − 10 = ______
63 + 10 = ______
36 + 20 = ______
25 + 10 = ______
84 + 10 = ______
65 − 10 = ______
27 − 10 = ______
1 × 10 = ______
97 − 10 = ______
19 + 10 = ______
86 + 10 = ______
