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
1 × 10 = ______
8 × 10 = ______
60 + 20 = ______
50 − 10 = ______
57 + 10 = ______
44 − 10 = ______
38 + 10 = ______
5 × 10 = ______
32 + 20 = ______
20 + 20 = ______
4 × 10 = ______
53 + 10 = ______
55 − 10 = ______
27 − 10 = ______
17 + 10 = ______
63 + 10 = ______
47 + 20 = ______
6 × 10 = ______
26 − 10 = ______
14 + 20 = ______
