1TH/vwo §9.5 challenging exercise = C10, p.113)

Think hard about this Task!

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Slide 1: Slide

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This lesson contains 10 slides, with interactive quizzes and text slides.

Lesson duration is: 45 min

Items in this lesson

Think hard about this Task!

timer

1:00

Slide 1 - Slide

The good equation is:

2g+39=871

2g-39=871

Slide 2 - Quiz

Let's discuss which formula is the good one and why.

Can somebody explain it?!

Slide 3 - Slide

SOLUTION :

Slide 4 - Slide

Did you see this Task before?
If so, where?

Slide 5 - Mind map

Now make question b in your Notebook.

Slide 6 - Slide

answer question b is ....

454 girls and 415 boys

455. girls and 416 boys

456 girls and 417 boys

457 girls and 418 boys

Slide 7 - Quiz

Let's discuss Task b together.

How to Calculate the number of girls and boys?

Slide 8 - Slide

Solution question b:

Slide 9 - Slide

Slide 10 - Slide

1TH/vwo §9.5 challenging exercise = C10, p.113)

Items in this lesson

Slide 1 - Slide

Slide 2 - Quiz

Slide 3 - Slide

Slide 4 - Slide

Slide 5 - Mind map

Slide 6 - Slide

Slide 7 - Quiz

Slide 8 - Slide

Slide 9 - Slide

Slide 10 - Slide

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