Mental arithmetic

LANTITE no calculator questions and numeracy practice

No-calculator practice is about choosing efficient mental strategies, estimating first and checking whether an answer is sensible.

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Useful no-calculator strategies

  • Split numbers into tens and ones.
  • Use 10%, 5%, 25% and 50% as anchors.
  • Round first to estimate.
  • Double and halve to simplify multiplication.
  • Convert common fractions to percentages.

For students who are not ready to commit to a full course, the LANTITE Numeracy app keeps no-calculator practice available in short, repeatable sessions.

Practice examples

CompensationCalculate 99 x 8.100 x 8 = 800. Subtract 8. 800 - 8 = 792.

Answer: 792.

PercentageFind 25% of 48.25% is one quarter. 48 / 4 = 12.

Answer: 12.

Calculator rules still matter

This page is for practice strategy. It does not state current official calculator rules. Check official LANTITE information before your test window.

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FAQ

Should I practise without a calculator?

Yes. It builds estimation, checking and confidence with core number facts.

What skills matter most?

Percentages, fractions, ratios, unit conversion, rounding and mental arithmetic benchmarks are useful starting points.