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
11 + 10 = ______
75 + 10 = ______
18 + 10 = ______
6 × 10 = ______
7 × 10 = ______
70 + 20 = ______
30 − 10 = ______
9 × 10 = ______
31 − 10 = ______
20 + 10 = ______
80 + 20 = ______
16 + 20 = ______
49 − 10 = ______
2 × 10 = ______
52 + 20 = ______
32 − 10 = ______
14 + 10 = ______
3 × 10 = ______
17 + 10 = ______
57 + 10 = ______
