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
6 × 10 = ______
47 + 20 = ______
53 + 10 = ______
30 + 10 = ______
85 − 10 = ______
4 × 10 = ______
97 − 10 = ______
38 + 10 = ______
51 − 10 = ______
19 + 20 = ______
28 + 10 = ______
85 + 10 = ______
1 × 10 = ______
27 + 20 = ______
22 − 10 = ______
19 + 10 = ______
32 + 10 = ______
3 × 10 = ______
84 − 10 = ______
31 + 20 = ______
