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
8 × 10 = ______
34 + 10 = ______
50 + 20 = ______
92 − 10 = ______
5 × 10 = ______
48 − 10 = ______
45 + 10 = ______
47 − 10 = ______
25 + 10 = ______
58 + 20 = ______
7 × 10 = ______
9 × 10 = ______
2 × 10 = ______
64 + 20 = ______
3 × 10 = ______
38 + 20 = ______
66 + 10 = ______
60 + 10 = ______
31 − 10 = ______
85 + 20 = ______
