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Years 3 to 6

Reasoning Reef

Reasoning Reef is all about word problems, the part of maths that dyslexic children often find hardest because of the reading involved.

Every problem can be read aloud. “Break it down” then guides your child through it: read the problem, find the numbers that matter, decide whether to add, take away, multiply or divide, and work it out.

Year 3: an equal groups problem
Year 3: an equal groups problem
Year 4: working out change
Year 4: working out change
Year 6: Break it down, step 1
Year 6: Break it down, step 1

Years 3 and 4: getting started

The Year 3 and 4 skills. Younger children start here, and older children can use them for a recap.

Easy one-step problems

Read the story. Is it add, take away, times or share?

  • adding
  • taking away
  • equal groups
  • sharing equally

Easy two-step problems

Two steps: work out the first part, then use your answer for the second part.

  • add, then take away
  • groups, then add
  • take away, then share

Money stories

100p = £1. Add up the prices. Change is what you get back.

  • how much altogether?
  • change from £1
  • buying more than one

Time stories

Count on in minutes. 60 minutes = 1 hour. 7 days = 1 week.

  • what time does it end?
  • how long?
  • days and weeks

Years 5 and 6: next steps

The Year 5 and 6 skills, building up to the KS2 SATs.

One-step problems

Read it. Find the numbers. Decide: add, take away, multiply or divide?

  • adding
  • taking away
  • multiplying
  • dividing

Two-step problems

Two jobs to do. Work out the first part, then use that answer for the second part.

  • × then +
  • + then ÷
  • − then ÷
  • × then −

Money problems

Pounds and pence. Remember: £1 = 100p.

  • cost of several
  • change from a note
  • how many can you buy
  • pounds to pence

Remainders in real life

After dividing, think: do we round up, round down, or is the leftover the answer?

  • round up
  • round down
  • what is left over

Missing numbers

Work backwards. Undo each step with the opposite operation.

  • I think of a number
  • ? + number
  • ? × number
  • both sides equal

Fractions and percentages in stories

Fractions and percentages of real things: classes, sales, scores.

  • fraction of a group
  • sale prices
  • what is left
  • scores as percentages

Time problems

Hours, minutes and seconds. 1 hour = 60 minutes. 1 minute = 60 seconds.

  • how long
  • hours into minutes
  • minutes into seconds
  • weeks and days

Ratio and scaling

For every… there are… Find one part first, then scale up.

  • for every
  • recipes
  • scale on a map

Sequences and negative numbers

Spot the rule in a pattern. Count across zero with negative numbers.

  • what comes next
  • missing number
  • temperature rise
  • temperature fall

How Reasoning Reef works

  • A short, no-pressure quick check finds the right starting point. It isn’t a test.
  • Every question can be read aloud, and hints show a picture first.
  • Each level has its own boss battle, unlocked once your child has had plenty of practice.
  • Practice is untimed.