Quantitative reasoning
Number analogies
In number analogies, the same rule turns each first number into its partner. Your child finds the rule from two complete pairs and uses it on the third.
What the questions look like
Three pairs of numbers. The first two are complete; the third has a missing number. Five numbers are the options.
In the digital test at Levels A to G this section lasts 10 minutes, with worked examples and untimed practice questions first.
What it measures
Finding a relationship between numbers and applying it, which draws on quick, accurate number facts. It sits in the quantitative reasoning battery.
Try one
An original example at Level B. Choose an answer, then check it to see the explanation.
Question 1 of 1Learning mode: no timer
The same rule turns each first number into its partner. What is the missing number?
2012251731?
Keys 1 to 5 choose an answer. Enter continues.
How to approach it
- Try the simple rules first: add, take away, multiply, divide.
- Check the rule works for both complete pairs before you choose.
- Two-step rules are common at higher levels: double, then add one.
Common mistakes
- Choosing a rule that fits the first pair but not the second.
- Stopping at one step when the rule has two, such as double then add one.
- Small arithmetic slips under time pressure.