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
7 × 10 = ______
58 + 20 = ______
29 − 10 = ______
80 + 20 = ______
74 + 20 = ______
20 + 20 = ______
16 + 20 = ______
47 + 20 = ______
8 × 10 = ______
77 − 10 = ______
6 × 10 = ______
39 + 10 = ______
18 + 10 = ______
63 − 10 = ______
38 + 10 = ______
26 − 10 = ______
41 + 20 = ______
57 − 10 = ______
56 + 20 = ______
61 − 10 = ______
