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
50 + 10 = ______
26 + 10 = ______
80 + 10 = ______
71 + 10 = ______
47 − 10 = ______
77 + 10 = ______
5 × 10 = ______
63 + 10 = ______
9 × 10 = ______
19 + 10 = ______
86 + 20 = ______
8 × 10 = ______
64 − 10 = ______
39 + 20 = ______
48 + 10 = ______
23 − 10 = ______
2 × 10 = ______
51 − 10 = ______
90 − 10 = ______
85 + 20 = ______
