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
64 + 10 = ______
5 × 10 = ______
3 × 10 = ______
71 − 10 = ______
60 − 10 = ______
41 + 10 = ______
12 + 20 = ______
52 − 10 = ______
39 − 10 = ______
8 × 10 = ______
74 + 20 = ______
2 × 10 = ______
37 − 10 = ______
21 + 10 = ______
57 + 20 = ______
6 × 10 = ______
11 + 10 = ______
34 − 10 = ______
33 + 10 = ______
89 + 10 = ______
