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
65 − 10 = ______
73 − 10 = ______
5 × 10 = ______
47 + 20 = ______
77 + 20 = ______
20 + 20 = ______
56 + 20 = ______
6 × 10 = ______
60 + 20 = ______
72 − 10 = ______
15 + 20 = ______
26 + 10 = ______
83 − 10 = ______
38 + 10 = ______
32 − 10 = ______
39 + 10 = ______
29 − 10 = ______
3 × 10 = ______
51 + 10 = ______
81 + 10 = ______
