Year 7 - Prime factorisation | Baamboozle - Baamboozle

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Team 2
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Teams

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10

Which number is a prime number?

19

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Check

Okay!

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15

Write 26 as a product of it's prime factors

13 x 2

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Check

banana

Go to last place!

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seesaw

Swap points!

Okay!

shark

Other team loses 5 points!

Okay!

banana

Go to last place!

Oops!

15

What are the first five square numbers?

1, 4, 9, 16, 25

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Check

20

Is this correct? Explain

Yes - Every number can be broken down in to prime factors

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20

What is the next number in this sequence?

25

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25

What is the missing prime factor

13

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20

Which student is wrong?

Chantelle

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20

Which number has more than 1 prime factor

12 = 2, 3,

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25

How old is Freddie?

14

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20

Write 42 as a product of its prime factors. Give your answer in the form a × b × . . . and write the factors in ascending order.

2x3x7

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25

Is this always, sometimes, or never a multiple of 4. Why?

Sometimes... when x=2, no as answer = 0

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20

Use the factor tree to write 36 as a product of its prime factors. Give your answer in the form a × b × . . . and write the factors in ascending order.

2 × 2 × 3 × 3

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Check

20

What are the common factors?

5, b, 5b

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Check

thief

Give points!

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25

fairy

Take points!

5

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25

gift

Win 25 points!

Okay!

baam

Lose 10 points!

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banana

Go to last place!

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gold

Win 50 points!

Okay!

rocket

Go to first place!

Okay!

baam

Lose 20 points!

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