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1/10

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1/10

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6 & 8

  1. Think about numbers that multiply to give 48. Thats going to be starting with low numbers, 2 * 24, 3 * 16, 4* 12, 6 * 8 etc
  2. Answer is 6 * 8 as these numbers when added give 14 and multiplied, give 48

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3/10

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5

  1. Use BIDMAS. So Brackets, Indices, Division, Multiplication, Addition & Subtraction
  2. In that order
  3. First we do Multiplication. So 5 x 2 = 10
  4. Revised question becomes 21-10+6
  5. Then addition so 21-16
  6. Then subtraction
  7. So answer is 5

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-16 & +4

  1. Six less than -10 is working backwards on the number line. So -16
  2. Twelve more than -8 = -8+12 = +4

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3/10

  1. Since Catherine’s age is a Prime Number, she must be 7 and Alison 12
  2. So Bethany must be 6

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Difficulty Rating

5/10

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Difficulty Rating

4/10

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Difficulty Rating

4/10

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5/10

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Difficulty Rating

7/10

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6/10

15

  1. Work backwards.
  2. 38 – 17 = 21
  3. 21 * 3 = 63
  4. 63 + 12 = 75
  5. 75/5 = 15

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4/10

  1. Division question with a small twist
  2. See notes above….Need bus for the remainder of people as well so answer is 20 not 19

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a. 10 seconds

If turn is 360 degrees every 40 seconds, 90 degrees as a right angle would take 1/4 of 40 = 10 seconds

b. 84 turns

In 56 minutes, the sails make 56/1 * 60/40 turns

Again, use of fractions to calculate these types of questions

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7/10

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8/10

7,11 & 39

  1. The multiples of 13 are 13,26,39,42,55
  2. The different factors of 77 are 1,11 and 7
  3. Answer is 7,11 & 39 = 57

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7/10

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Difficulty Rating

9/10

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5/10

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6/10

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6/10

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Difficulty Rating

10/10