It's probably better if you use your head, but to each his own. When rounding to a specific place, take a look at the digit immediately to the right of the target, in this case, the thousandths place. If that digit is 4 or less, zero everything to the right of the target out. If that digit is 5 through 9, increase the target by one and zero everything to the right of it out. If the target is a 9, increasing it will turn it to zero and increase the digit to the left of the target by one.
10.92 feet
1.23 miles.
101706.04
5.6 yards x 3 feet per yard = 46.80 feet (Note: 46.8 is exact. Rounding to hundredths isn't required.)
15.13 feet
3.75 feet
4.50 feet
10.92 feet
65.76 inches.
1.23 miles.
There's only one answer. 1.28 feet = 39.01 centimeters
34030.00
1 foot = 12 inches 1.67 feet = 1.67 x 12 = 20.04 inches.
101706.04
5.6 yards x 3 feet per yard = 46.80 feet (Note: 46.8 is exact. Rounding to hundredths isn't required.)
1297.23 m
15.13 feet