Pearson Edexcel International GCSE (9–1) · MATHEMATICS A · Unit
Unit 1
108 practice questions
Topics covered
Practice questions
21–30 of 108
Question 21
1 mark · Easy
Answer and see the solution →Simplify .
Question 22
1 mark · Easy
Answer and see the solution →Write down the meaning of the expression in words.
Question 23
2 marks · Easy
Answer and see the solution →Simplify each of the following expressions.
(a)[1 mark](b)[1 mark]Question 24
2 marks · Normal
Answer and see the solution →Write down the value of the expression when and .
Question 25
2 marks · Normal
Answer and see the solution →Simplify the expression .
Question 26
4 marks · Normal
Answer and see the solution →The expression is given.
(a)[2 marks]Collect like terms to simplify the expression.
(b)[2 marks]Evaluate your simplified expression when .
Question 27
2 marks · Normal
Answer and see the solution →Find the value of when .
Question 28
2 marks · Normal
Answer and see the solution →Simplify the expression .
Question 29
3 marks · Normal
Answer and see the solution →Simplify .
Question 30
3 marks · Normal
Answer and see the solution →The table below shows values of for different values of .
k z 1 4 7 Complete the table for the given values of .