1T H/VWO §2.2 Divisors

• Wiskunde
• Middelbare school
• havo, vwo
• Leerjaar 1

§2.2 DIVISORS (delers)

Before you make this paragraph, let's 

do this lessonUp!

Many new words came up in §2.1 and more we will see in §2.2 !

Which new words you think are important in §2.1  and

in §2.2 ?

Key them in in the following slide.

My new words (at least two) are:

Words, words, words ...

Let's make our WORDLIST a bit longer with some WORDS from 

§2.1  and  §2.2.

+  Open your NOTEBOOK on the last page and 

+  Copy the following words

WORDS for your WORDLIST,

part 1:

digit - cijfer, vinger                                                                     divisor - deler

value - waarde                                                                             division - deling   example:   like 6 : 2 = 3

billion - miljard    (1,000,000,000)                                         remainder - rest   example:   9 : 4 = 2,                                                                                                                                          remainder 1

part 2:

property - eigenschap

prime number - priemgetal          (2, 3, 5, 7 etcetera)

consecutive numbers - opeenvolgende getallen (1, 2, 3, 4 etcetera)                              

multiplication - vermenigvuldiging

even numbers - even getallen (2, 4, 6 etcetera)

odd numbers - oneven getallen (1, 3, 5 etcetera)

multiple - veelvoud (12 is a multiple of 3 because 4 x 3 = 12)

Some of the new words in PRACTICE:

An example of 'divisible':

now 'divisors' (= delers):

42 is a multiple of 21

1. true
2. false

78 is a multiple (= veelvoud) of 6

1. true
2. false

7 is a divisor (= deler) of 49

1. false
2. true

Fill in: 9 is a ....... of 27 and
25 is a ....... of 5

1. multiple divisor
2. divisor multiple

57 is divisible by

1. 3
2. 3, 13 and 19
3. 3 and 19
4. nothing

explanation:

You can divide 57 by 3 and 19, because

3 x 19 = 57

Finally odd and even numbers:

Write down 3 prime numbers
(priemgetallen)!

Let's see what the book has to say about Prime Numbers!

Homework time.

+ Make §2.2 Divisors now. Then:

+ Check your work with the Solutionsbook!

+ Good luck!