Question

Suppose you were asked to measure the length of this pencil in the unit centimeters. It is longer than 6.5 cm, but how much longer? Scientists have agreed that all measurements should be recorded to the smallest marking plus one estimated digit. Using that guideline, the measurement of this pencil is:

6.73
6.55
7.0
7.01

Answer 1

6.5 to the nearest whole number is 7

Answer 2

the answer is 7.0 because 6.5 rounded is 7.0