Unit 3 · Measurement and Data
8 km 23 m vs 23 km 8 m — The Difference?
Lesson 9 of 13
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About this lesson
8 km 23 m vs 23 km 8 m — the digits are swapped. Convert both to metres first, subtract, then convert the answer back to km and m.
Chapters
0:00Introduction
0:20The Question
1:11Converting to a Standard Unit (Metres)
1:41Executing Column Subtraction
2:04Converting Back to Kilometres and Metres
2:29Exam Strategy — The Single-Digit Placeholder Check
3:05Confirming the Final Option
Question
Two statues are 8 kilometres 23 metres apart.
A map-maker incorrectly labels the distance between the statues on a map. The incorrect distance is 23 km 8 m.
What is the difference between the correct and incorrect distances?
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