Question

Explain why 17 tens. and 1 hundred 7 tens have the same value

Answer 1

because 1 hundred and 7 tens equal 170
and 17x10 equals 170

Answer 2

we know that

`1\ tens=10 \\1\ hundred=100`

so

1) the expression
`17\ tens` is equal in numbers to

`17\ tens=17*10=170`

2) the expression
`1\ hundred\ 7\ tens` is equal in numbers to

`1\ hundred\ 7\ tens=1*100+7*10=100+70=170`

therefore

`17\ tens` and
`1\ hundred\ 7\ tens` have the same value