800
The tens place is the 5; the ones digit is 0, so no rounding is required. 750 is the value rounded to nearest ten.
750
750
740
It is already rounded to the nearest ten.
750
The tens place is the 5; the one's digit is 0, so no rounding is required. 750 is the value rounded to the nearest ten. 75 tens 75 x 10 = 750.
750
800
No its not
It is 750.
750