B. CUBING / CUBOS
3
5 × 5 × 5 =
=
5
(1)
CORRECTION OF ERRORS / CORRECCIÓN DE ERRORES
A. 123 + 556 → 123 + 456
(1)
B. 1234567 → 1234578
(1)
(2)
5
5
(2)
123
556
456
(2)
1234567
78
(3)
5.
25.
125.
5.
25.
125.
(3)
123.
0.
579.
579.
(3)
1,234,567.
123,456.
12,345.
1,234,578.
– 34 –
(4)
5 . ×
5 . =K
25 .
25 . =K
125 .
5 . ×
5 . ×
5 . =
125 .
(4)
123 .
+
456 .
+
579 .