Calculate an arithmetic mean

The middle of the largest and smallest values is the range midpoint, not the mean. The wrong answers on this skill are built out of that, not out of random numbers, so it is worth naming out loud before your child meets it under time pressure.

Point at the next move rather than explaining the whole rule. Add every number in the Saturday cups column first, then share that total equally between the 4 rows.

The skill map draws the line here: Excludes median and mode. A question past that line is testing a different named maths skill, which is worth knowing before you spend a week practising the wrong one.

The data strand holds 9 skills that are tested together, and the pages next to calculate an arithmetic mean are compare bar-chart values, compare line-graph change and compare table values. Each has its own exercise and its own link, and none of them needs an account.

Use Fair Share Machine and Average Showdown, embedded on this page. They are the exercises the skill map attaches to calculate an arithmetic mean, they run in the browser with no account to make, these exercises are not scored and do not save learner records. The separate quiz sends answers for marking and shows a score, without saving an assessment record. Each also has its own link, so you can send one to a child without sending them anywhere else first.