NS doesn't mean "Lenovo" or anything else.

Lesson 7: Understanding Numbers

Summary: Lesson 7: 1.3 and 1.5.

Standard 7NS 1.3: the level to be achieved in learning the seventh lesson 1.3: like "teaching purpose, teaching standard"

Convert fractions into decimals and percentages and use these representations in estimation, calculation and application.

Convert fractions into decimals and percentages and use these representations in estimation, calculation and application.

Fractions can be converted into decimals and percentages, which can be reflected in assignment, calculation and application.