# 1TH/V Ch 2 Numbers - SUMMARY, p.66-71

Extra exercises Ch 2 Numbers ...
is due for today!
First an introduction.
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Slide 1: Slide
WiskundeMiddelbare schoolhavo, vwoLeerjaar 1

This lesson contains 16 slides, with interactive quizzes and text slides.

Lesson duration is: 60 min

## Items in this lesson

Extra exercises Ch 2 Numbers ...
is due for today!
First an introduction.

#### Slide 1 -Slide

What's not in Ch 2?
A
rounding off
B
digits
C
fractions
D
cuboids

What is in Ch 2?
A
decimal numbers
B
simplifying
C
thousands
D
dividing

#### Slide 4 -Mind map

Which digit represents the millions
in 675 987 456 ?
A
9
B
7
C
5
D
8

#### Slide 5 -Quiz

Which digit represents the billions
in 7 342 675 987 456 ?
A
5
B
7
C
2
D
6

#### Slide 6 -Quiz

Explanation:
Do you remember that
the English 'billion' is our 'miljard' ?!
So in 548 042 769 562 euros
there is:  8 billion euros.

#### Slide 8 -Slide

What's the most interesting part of Ch 2 for you?

#### Slide 9 -Mind map

What was new for you in Ch 2?

#### Slide 10 -Mind map

Whatever your level is now ...
in this lesson try to raise it a bit higher by doing:
p.78/79  Extra exercises !
On Tuesday 29th September 2020
there is a 2 test about Ch 3, so
this is a good preparation for it!

#### Slide 11 -Slide

How many billion?
A
0.01 billion
B
1 billion
C
0.1 billion
D
10 billion

#### Slide 12 -Quiz

How many billion are in the next slide?

#### Slide 14 -Slide

Explanation
1 billion          =  1 000 million = 1 000 000 000,  so
0.1 billion      =     100 million  =    100 000 000 = 100 million

#### Slide 15 -Slide

What is your level of understanding, measured (gemeten) from 1 to 10 ?