Australia · Year 10 entry

HAST Year 10 Mathematical Reasoning free practice questions with answers

Read question 1 and its full worked answer from paper 1 of our 20-paper HAST Year 10 Mathematical Reasoning set, then download the 4-page PDF. These are original practice questions, not official past papers. Page updated 3 November 2026.

Question 1

What value of x satisfies 9x - 7 = 1x - 3?

A

B -1

C

D

Worked answer

Correct answer: D —

  • Our goal is to get x on its own. First collect all the x terms on ONE side.
  • Subtract 1x from both sides. The left side becomes 8x - 7 and the right side becomes -3.
  • Now move the plain number: take away -7 from both sides, so 8x = -3 - (-7) = 4.
  • Finally divide both sides by 8: x = 4 ÷ 8 = • Why the other options are wrong:
  • A ( • B (-1): The x terms were added instead of subtracted.
  • C ( To solve an equation, do the same thing to both sides until x stands alone: collect x terms, move numbers, then divide.
Download the free sample: 3 questions and answers (PDF)

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Questions about this sample

What is in the HAST Year 10 Mathematical Reasoning free sample?

The first 3 questions from paper 1 of the set, in the real exam layout, followed by the step-by-step worked answers. It is a 4-page PDF; this page shows question 1 with its answer.

How many full HAST Year 10 Mathematical Reasoning papers are there?

20 original papers for students preparing for Year 10 entry (HAST (High Achievers Selection Test)). Each is 35 multiple-choice questions in 40 minutes (4 options each, no calculator), with a worked solution for every question. Papers start at A$11.99 and download instantly as a PDF.

Are these official past papers?

No. The sample is taken from our own original practice paper and is not an official past paper or affiliated with any exam authority.