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Calculator Words

Quiz about numbers on a calculator which appear as words when upside down.

Level 1 Level 2 Calculator Workout Broken Calculator More Calculator Activities

Below is an old-style calculator whose digits are formed using seven-segment displays. When viewed upside down, some numbers resemble words.

Try entering 77345663, then press Rotate to reveal what looks like the word "EGGSHELL"

Your challenge is to discover ten more calculator words using the ten clues. For each clue, enter the calculation into the calculator, then rotate it and work out which word appears in the display.

You can earn a Transum virtual trophy if you get at least 7 of the words correct.

Transum Trophy
1

Welcome to this online quiz. Let's start by saying the word you get by multipling 1289 by 6 then dividing by 10 000.

2

What items are formed from the number of days in 809 weeks?

3

This instrument is the 206th number in the 15 times table.

4

These beach lovers are the mean of 577330 and 577360.

5

This cold house is 0.0760876987 rounded to 3 significant figures.

6

What on earth is this? It is five times the product of 29 and 49.

7

All singing and dancing area (in square millimetres) of a triangle with a base of 211mm and a height of 25mm

8

The square root of 405769

9

A number divided by 101 equals two cubed. Who does that number belong to?

10

These birds are the number, that when added to the negative of half of itself gives 17668.

Check

Can you correct your mistakes in order to get full marks?

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Learn a skill a day for 20 days in order to get the most out of this graphic display calculator.

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Complete this twelve-question survey in order to earn a free trophy.

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Instructions

Try your best to answer the questions above. Type your answers into the boxes provided leaving no spaces. As you work through the exercise regularly click the "check" button. If you have any wrong answers, do your best to do corrections but if there is anything you don't understand, please ask your teacher for help.

When you have got all of the questions correct you may want to print out this page and paste it into your exercise book. If you keep your work in an ePortfolio you could take a screen shot of your answers and paste that into your Maths file.

Why am I learning this?

Mathematicians are not the people who find Maths easy; they are the people who enjoy how mystifying, puzzling and hard it is. Are you a mathematician?

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Featured Activity

Online Logo

Online Logo

An opportunity for students to write a computer program. There is nothing to download, all of the interaction takes place in the browser. Great for understanding angles and the properties of shapes.

Answers

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Wikipedia,

Friday, August 7, 2026

"Five Three One - Double Seven O Four is the 19th UK studio album by the English rock/pop group the Hollies. When rendered as digits, the album title is the band's name upside down in digital number view.

This is the cover art for 5317704 by the artist The Hollies"

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