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Difficulty Rating

1/10

Answer

0.006

  1. If not sure, remove the zeros. So make it 20 * 3 = 60 (ie multiply both numbers by the same amount until the zeros are removed. This would be x100)
  2. Then , because you removed 3 0s, you need to add these back in.
  3. So the 60 because 0.006

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Difficulty Rating

5/10

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Difficulty Rating

5/10

Answer

12

  1. The first even multiple of 7 is 14. The first prime number is 2
  2. Therefore, answer is 12

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Difficulty Rating

4/10

Answer

C

  1. 5((6*9)+(7*3)-(8*6))
  2. This gives 5(54+21-48)
  3. This gives 5(27)
  4. Answer 135

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Difficulty Rating

7/10

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Difficulty Rating

5/10

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Difficulty Rating

3/10

Answer

A

1680 = 1680

Quick way is you are doubling the 24 to get to 48 on the other side. Then halving the 70 and getting 35 on the other side. So no calculations required in this question

 

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Difficulty Rating

5/10

Answer

C

The answer would be the highest factor of both 8 & 20 from the options since each tile is square. The answer to this is 4

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Difficulty Rating

4/10

Answer

A

100 is not a multiple of 3

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Difficulty Rating

4/10

Answer

C

15 pens cost £4.65

19 pens cost x

x = (19 * 4.65)/15

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Difficulty Rating

7/10

Answer

A

Work backwards. 23 – 3 = 20. Divide by 4 and you get 5

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Difficulty Rating

4/10

Answer

B

2Triangles = 1 Hex minus 1 Square = 6-4 =2

So a triangle = 1

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Difficulty Rating

10/10

Answer

B

Number of grey tiles = 2*n where n=shape number

So for Shape 3, it would be 2*3 = 6 grey tiles

28 grey tiles = 2 * n so n = 14. Shape 14

For Shape 14, white tiles = (n+1) = 15

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Difficulty Rating

7/10

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Difficulty Rating

6/10

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Difficulty Rating

6/10

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Difficulty Rating

8/10

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Difficulty Rating

8/10

Answer

78000

Number of words = 256 * 33 * 9

Estimate = 260 * 30 * 10

= 78000

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Difficulty Rating

7/10

Answer

9

987654321 – 987654312 = 9

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Difficulty Rating

6/10

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Difficulty Rating

7/10