Page 4 - 新思维数学活动用书5 样章

How to use this book
How to use this book

How to use this book

This workbook provides questions for you to practise what you have learned in class.

There is a unit to match each unit in your Learner’s Book. Each exercise is divided into

three parts:

• Focus: these questions help you to master the basics

• Practice: these questions help you to become more confident in using what you
have learned

• Challenge: these questions will make you think very hard.

You might not need to work on all three parts of each exercise. Your teacher will tell you

which parts to do.

You will also find these features:

Important words that you will use. compose decompose
decimal hundredth
decimal place place value
Step-by-step examples decimal point tenth

showing a way to solve
Worked example 1
Worked example 1
a problem. Mai, Yared and Susan live in different time zones.
The time on Yared’s clock is 2 hours ahead of the time on Mai’s clock.
The time on Susan’s clock is 3 hours behind the time on Mai’s clock.
The time in Mai’s time zone is 15:07. What is the time for Yared and Susan?
Yared’s time is 2 hours ahead of Mai’s. Add 2 hours to 15:07.
There are The time for Yared is 17:07.
often many different Susan’s time is 3 hours behind Mai’s. Subtract 3 hours from 15:07.
ways to solve a The time for Susan is 12:07.
problem.

These questions will help
12 Draw a ring around the odd one out.
you develop your skills of 368.4 tenths 368.4 3684 hundredths
36.84 368 tenths and 4 hundredths
thinking and working Explain your answer.

mathematically.

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