Page 80 - Math Smart - 7

CHAPTER 4.2

In this chapter
Operations on
Pupils should be able to:
• add and subtract
integers and decimals, Decimals
including numbers with
different numbers of
decimal places
The One World Trade Center in New York is 546 m tall. How much taller is it
than the Eiffel Tower in Paris? To answer this question you add or subtract
whole numbers. Sometimes, you need to add or subtract decimals. For
example, what is the height difference between Burj Khalifa in Dubai, and
the Lotte World Tower in Seoul?
In this chapter you learn how to add and subtract decimals.
Burj Khalifa
829.8 m

Lotte World Tower
554.5 m
One World Trade
Center. 546 m
Empire State
Building|443 m
Eiffel Tower Burj Al Arab
324 m 321 m
The Shard
310m
Taj Mahal
73 m

O Spotlight

Take a tour around the
world and look at some
of the tallest skyscrapers
that are still under
construction.

SiaiH

UNIT 4 I Decimals