Answers
1. (Percentage Increase) A headteacher earning £2827 per month
gets a 12% pay rise. What is her new monthly salary? Correct Answer:
2827 x 1.12 = 3166.24
2. Define Factor Correct Answer: A factor of any natural number is a natural number by which it can
be divided exactly without any remainder. eg 3 and 2 are factors of 6.
3. Define Sum Correct Answer: The answer to an addition question.
4. (Roman Numerals) 1 Correct Answer: I
5. Roman (Numerals) 5 Correct Answer: V
6. (Roman Numerals) 10 Correct Answer: X
7. (Roman Numerals) 50 Correct Answer: L
8. (Roman Numerals) 100 Correct Answer: C
9. (Roman Numerals) 500 Correct Answer: D
10. LCM Correct Answer: eg the lcm of 6 and 10 is the smallest number that can be split into
groups of 6 and 10 = 30
11. HCF Correct Answer: The largest factor that two numbers have in common eg HCF of 24
and 30 is 6.
12. Prime Number Correct Answer: a number that has exactly two factors Correct Answer: 1
and itself. It cannot be divided by any other number. eg 2, 3, 5, 7, 11, 13, 17 etc.
13. Square Number Correct Answer: The product of a number multiplied by itself.
14. Cube Number Correct Answer: The product of when you multiply 3 of the same
number together
15. How do you add/subtract fractions? Correct Answer: 1. Change them into
equivalent fractions.
2. Add/subtract the top numbers.
3. Cancel down.
16. How do you multiply decimals? eg Correct Answer: 11.9 x 8 Correct
Answer: Remove the decimal point and add it once you have completed the sum eg 119
x 8 = 952 = 9.52
17. How do you multiply together two decimal numbers? Correct
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