Myriora Verbal Reasoning › 11+ verbal reasoning › Chapter 4: Letters, numbers and logic

Related numbers

11+Chapter 4 · Lesson 4

In this lesson

Try a rule on the first bracket.
Check it on the second bracket too.
Then use it on the last one.

Your turn

Six and two make three. Ten and two make five. What do twelve and three make?

Show the answer

Four! The rule is divide, and twelve divided by three is four.

The common mistake

Here's a common mistake. Two and two make four. Adding works, but so does multiplying! Lots of people stop at the first rule they find. Check the second bracket: three and three make nine. Only multiplying works there.

Try it at home

Bracket puzzles: make three brackets like (3 [12] 4) with one secret rule (add, take away, times or divide). Check your rule only works one way in the first two.

Read the whole lesson

Hello, and welcome to Myriora English! In each bracket, the middle number is made from the two outside numbers. The same rule works in every bracket. Three and four make twelve. Five and six make thirty. So what do two and seven make?

Here's how to do it. Try a rule on the first bracket. Three times four is twelve. Then check it on the second bracket. Five times six is thirty. It works, so use it on the last bracket. Two times seven is fourteen.

Let's try one together. Five and four make nine. Seven and three make ten. What do six and eight make? Say it out loud!

Fourteen! The rule is add, and six plus eight is fourteen. Well done if you said fourteen!

Your turn! Six and two make three. Ten and two make five. What do twelve and three make? Pick the right card. You've got ten seconds, or pause the video. Go!

Time's up! Four! The rule is divide, and twelve divided by three is four.

Quick review. Try a rule on the first bracket. Check it on the second bracket too. Then use it on the last one. See you next time!