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Number patterns · SET 2

Question 1

Use the example in the first line to decide what goes into the empty brackets. Write the digits as one number.

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Question 2

Consider the following calculations and decide which is the odd one out. (Work through each line from left to right, in the order written.)

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  1. 6 + 17 − 9 ÷ 7 + 3
  2. 3 × 11 + 6 ÷ 13 + 2
  3. 2 × 6 × 3 + 4 ÷ 10
  4. 1 + 8 − 3 ÷ 2 + 2
  5. 7 − 4 + 6 − 1 − 3

Question 3

Which of these numbers is the odd one out?

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  1. 4
  2. 18
  3. 16
  4. 8
  5. 24

Question 5

What number should replace the question mark?

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Question 6

What number goes into the empty square?

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Question 7

Count down, first by 1, then by 2, then by 3 and so on (one more each time), as in this example: 15, 14, 12, 9, 5, 0. Which of these numbers will finish exactly at zero?

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  1. 102
  2. 103
  3. 104
  4. 105
  5. 106

Question 8

In a race of 16 horses numbered 1 to 16, I missed the finish. Six friends told me about the winner's number: A: it was even. B: it was odd. C: it was prime. D: it was a square number. E: it had 2 digits. F: it was between 6 and 12. Only four of them told the truth. Which number won?

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Question 9

Find the pattern in the row 24 81 63 26 412 8 25 X. What is X?

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Question 11

Take two numbers. If we subtract half of the smaller number from each of them, the result for the larger number is three times the result for the smaller number. How many times as large as the smaller number is the larger number?

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Question 13

Following the same pattern, what does 17 × 3 equal?

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Question 14

Look at the pattern: 3 4 5 6 (7 1), 6 5 9 2 (11 7), 7 2 5 1 (9 4). What goes into the empty brackets in 9 5 9 2 ( )? Write the contents as one number.

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Question 15

Which column does not conform?

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  1. Column A
  2. Column B
  3. Column C
  4. Column D
  5. Column E
  6. Column F

Question 16

Which date does not conform with the others?

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  1. 1417
  2. 1533
  3. 1605
  4. 1722
  5. 1812
  6. 1902

Question 17

What number should replace the question mark?

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Question 18

Following a definite rule, what number should replace the question mark?

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Question 19

What goes into the empty brackets? Write the digits as one number.

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Question 20

What number goes into the empty brackets? Write the digits as one number.

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