Resources tagged with: Estimating and approximating

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There are 29 results

Broad Topics > Calculations and Numerical Methods > Estimating and approximating

Dicey Operations

Age 11 to 14
Challenge Level

Who said that adding, subtracting, multiplying and dividing couldn't be fun?

Nice or Nasty for Two

Age 7 to 14
Challenge Level

Some Games That May Be Nice or Nasty for an adult and child. Use your knowledge of place value to beat your opponent.

Can You Make 100?

Age 11 to 14
Challenge Level

How many ways can you find to put in operation signs (+ - x รท) to make 100?

Nice or Nasty

Age 7 to 14
Challenge Level

There are nasty versions of this dice game but we'll start with the nice ones...

Countdown

Age 7 to 14
Challenge Level

Here is a chance to play a version of the classic Countdown Game.

Whole Numbers Only

Age 11 to 14 Short
Challenge Level

Can you work out how many of each kind of pencil this student bought?

Counting Sweets

Age 7 to 14
Challenge Level

How might you use mathematics to improve your chances of guessing the number of sweets in a jar?

Power Countdown

Age 14 to 16
Challenge Level

In this twist on the well-known Countdown numbers game, use your knowledge of Powers and Roots to make a target.

Thousands and Millions

Age 11 to 14
Challenge Level

Here's a chance to work with large numbers...

Almost One

Age 11 to 14
Challenge Level

Choose some fractions and add them together. Can you get close to 1?

Ladder and Cube

Age 14 to 16
Challenge Level

A 1 metre cube has one face on the ground and one face against a wall. A 4 metre ladder leans against the wall and just touches the cube. How high is the top of the ladder above the ground?

Squaring the Circle

Age 11 to 14
Challenge Level

Bluey-green, white and transparent squares with a few odd bits of shapes around the perimeter. But, how many squares are there of each type in the complete circle? Study the picture and make. . . .

A Jar of Teddies

Age 7 to 14
Challenge Level

How many teddies are in the jar? How many teddies could you fit in your classroom?

The Fastest Cyclist

Age 14 to 16
Challenge Level

Andy is desperate to reach John o'Groats first. Can you devise a winning race plan?

Place Your Orders

Age 11 to 14
Challenge Level

Can you rank these sets of quantities in order, from smallest to largest? Can you provide convincing evidence for your rankings?

Big and Small Numbers in Chemistry

Age 14 to 16
Challenge Level

Get some practice using big and small numbers in chemistry.

Biology Measurement Challenge

Age 14 to 16
Challenge Level

Analyse these beautiful biological images and attempt to rank them in size order.

Does This Sound about Right?

Age 11 to 14
Challenge Level

Examine these estimates. Do they sound about right?

Speed-time Problems at the Olympics

Age 14 to 16
Challenge Level

Have you ever wondered what it would be like to race against Usain Bolt?

A Question of Scale

Age 14 to 16
Challenge Level

Use your skill and knowledge to place various scientific lengths in order of size. Can you judge the length of objects with sizes ranging from 1 Angstrom to 1 million km with no wrong attempts?

Big and Small Numbers in Physics

Age 14 to 16
Challenge Level

Work out the numerical values for these physical quantities.

Back Fitter

Age 14 to 18
Challenge Level

10 graphs of experimental data are given. Can you use a spreadsheet to find algebraic graphs which match them closely, and thus discover the formulae most likely to govern the underlying processes?

All in a Jumble

Age 11 to 14
Challenge Level

My measurements have got all jumbled up! Swap them around and see if you can find a combination where every measurement is valid.

Approximately Certain

Age 14 to 18
Challenge Level

Estimate these curious quantities sufficiently accurately that you can rank them in order of size

Time to Evolve

Age 14 to 16
Challenge Level

How many generations would link an evolutionist to a very distant ancestor?

More or Less?

Age 14 to 16
Challenge Level

Are these estimates of physical quantities accurate?

Big and Small Numbers in Biology

Age 14 to 16
Challenge Level

Work with numbers big and small to estimate and calulate various quantities in biological contexts.

Where Am I?

Age 11 to 16
Challenge Level

From the information you are asked to work out where the picture was taken. Is there too much information? How accurate can your answer be?

Olympic Measures

Age 11 to 14
Challenge Level

These Olympic quantities have been jumbled up! Can you put them back together again?