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
40 − 10 = ______
47 + 20 = ______
30 − 10 = ______
1 × 10 = ______
35 − 10 = ______
97 − 10 = ______
5 × 10 = ______
50 + 20 = ______
18 + 10 = ______
13 + 20 = ______
8 × 10 = ______
25 + 10 = ______
21 − 10 = ______
3 × 10 = ______
4 × 10 = ______
7 × 10 = ______
31 + 10 = ______
42 − 10 = ______
2 × 10 = ______
57 + 10 = ______
