77 would be rounded up to 80 if you were asking for the tens place. Don't confuse tens with tenths. 77 rounded to the nearest tenth place is 77.
77.0
To round any number, look at the digit to the right of the place you are rounding to. If the digit is 5 or more, change the digit in the place you are rounding to to the next higher digit. If the digit to the right of the place you are rounding to is less than 5, leave the digit in the place you are rounding to as it is. Change all digits to the right of the place you rounded to to zeros. 56.62 rounded to the nearest tenth is 56.6
The rule when rounding off numbers is "If the first figure to be discarded is 5 or more then the previous figure is increased by 1". As the nearest 100 is required then regard 77 as 077. The first number to be discarded is 7 and as this is greater than 5 then the previous number (which is 0) is increased by 1. So 77 rounded to the nearest 100 becomes 100.
77 million
77 is not the square of an integer. Rounded to five decimal places, its square root is equal to 8.7750.
Rounded to the nearest ten 77 is 80, not 17. Rounded to the nearest tenth 77 is 77.0.
77.0
77.0
Rounded to the nearest whole number it is 77
To round any number, look at the digit to the right of the place you are rounding to. If the digit is 5 or more, change the digit in the place you are rounding to to the next higher digit. If the digit to the right of the place you are rounding to is less than 5, leave the digit in the place you are rounding to as it is. Change all digits to the right of the place you rounded to to zeros. 56.62 rounded to the nearest tenth is 56.6
77.4 rounded to the nearest whole number = 77
100
80
It will round to 77.
77
7.2 rounded to the nearest whole number is 77
77