Common Core
6.RP.A.3.B
3 lessons teach this standard. Every lesson is interactive, and every one prints as a worksheet with a separate answer key.
Money Around the World · Chapter 3 · Lesson 1
An exchange rate is a ratio.
Money Around the World · Chapter 3 · Lesson 2
Multiply to leave the 1. Divide to come back.
Measuring Around the World · Chapter 3 · Lesson 3
Price per Kilo, Price per Pound
Two prices cannot be compared until they share a unit.