Question

which of these following numbers 10, 4 ,50 60are called butterfly numbers​

Answer 1

Step-by-step explanation:

Decimal numbers are referred to as butterfly numbers.but there is no decimal number.

Answer 2

Given,

The numbers given are $\[10,4,50\,{\rm{and}}\,60.\]$

Solution,

Know that butterfly numbers are those decimal numbers that can be represented in an abacus.

Therefore, here $\[60\]$ is a butterfly number as by doing addition and subtraction of the numbers $\[6,7,8\,{\rm{and}}\,9\]$with the help of the abacus we use the index and thumb fingers like a butterfly.

Hence, the butterfly number is $\[60.\]$