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Thomas International GIA section guide

Thomas GIA Number Speed & Accuracy guide

Manipulate simple numerical information accurately at speed.

5 timed tests
2-5 min per test
30-45 min including instructions
8 practice examples before each test

The ability behind the questions

Thomas describes this area as identifying numerical distance and manipulating numerical information.

How to approach each item

  1. Identify exactly what comparison or operation is requested.
  2. Use mental arithmetic rather than writing a long solution.
  3. Check the sign and direction before answering.

A simple version of the rule

The distance between 17 and 12 is 5; numerical distance is always the size of the gap.

Practise the skill efficiently

  • Memorise common differences and number bonds.
  • Estimate first so an impossible result stands out.
  • Do not overcomplicate a short arithmetic operation.
Watch out

Choosing the larger number instead of the distance between numbers.

Quick tip

Think in gaps on a number line.

Continue through the test

This guide uses representative examples for preparation. It does not reproduce proprietary live assessment questions and is not endorsed by the assessment publisher.