Edexcel GCSE Foundation Number

Which of these sums would NOT give the answer -10? 

• -5 x -2
• -7 - 3
• -12 - (- 2)
• -40 ÷ 4

Which of these sums are the inverse to 27³?

• 3 x 27
• 27 - 3
• ∛27
• 3²⁷

What is 3.698 rounded to 2 d.p?

• 3.69
• 3.70
• 4.7
• 36.9

Which of these have NOT been rounded 1 significant figure?

• 56000
• 0.3
• 900
• 0.0008

Which of these do NOT give this answer 0.8?

• 56÷70
• 800 x 0.001
• 0.4 x 0.2
• 0.64÷0.8

What does estimate mean?
Eg Estimate the cost of 78 cakes at 2.45 each.

• Guess a random answer
• Do the calculation and then round it to one significant figure
• Round to one decimal place and then do the calculation
• Round all the numbers to one significant figure first and then do the sum in your head

Using the knowledge that 83 x 9 = 747 which of these calculations is NOT right?

• 0.83 x 90 = 74.7
• 8.3 x 9 = 74.7
• 8300 x 0.09 = 74.7
• 8.3 x 0.9

Which of these categories are correct for the number 27

• Prime, Multiple of 9
• Factor of 54, Multiple of 3
• Multiple of 54, Not prime
• Multiple of 1, 3 and 9

Which of these is correct for the numbers 6 and 8

• HCF 2
  LCM 24
• HCF 2
  LCM 48
• HCF 1
  LCM 2
• HCF 48
  LCM 2

What is √16 + ∛8?

• 28
• 7
• 12
• None of the above