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Resources tagged with Estimating and approximating similar to Four Go:

Other tags that relate to Four Go

Visualising. Addition & subtraction. Calculators. Interactivities. Estimating and approximating. Trial and improvement. Factors and multiples. Working systematically. Games. Multiplication & division.

There are 17 results

Broad Topics > Calculations and Numerical Methods > Estimating and approximating

Four Go

Stage: 2 Challenge Level:

This challenge is a game for two players. Choose two numbers from the grid and multiply or divide, then mark your answer on the number line. Can you get four in a row before your partner?

Some Games That May Be Nice or Nasty

Stage: 2 and 3 Challenge Level:

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

Today's Date - 01/06/2009

Stage: 1 and 2 Challenge Level:

What do you notice about the date 03.06.09? Or 08.01.09? This challenge invites you to investigate some interesting dates yourself.

Countdown

Stage: 2 and 3 Challenge Level:

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

What's My Weight?

Stage: 2 Short Challenge Level:

There are four equal weights on one side of the scale and an apple on the other side. What can you say that is true about the apple and the weights from the picture?

Dicey Operations

Stage: 2 and 3 Challenge Level:

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

Discuss and Choose

Stage: 1 and 2 Challenge Level:

This activity challenges you to decide on the 'best' number to use in each statement. You may need to do some estimating, some calculating and some research.

The Unmultiply Game

Stage: 2, 3 and 4 Challenge Level:

Unmultiply is a game of quick estimation. You need to find two numbers that multiply together to something close to the given target - fast! 10 levels with a high scores table.

Back to School

Stage: 2 Challenge Level:

Mr. Sunshine tells the children they will have 2 hours of homework. After several calculations, Harry says he hasn't got time to do this homework. Can you see where his reasoning is wrong?

Shedding Some Light

Stage: 2 Challenge Level:

Make an estimate of how many light fittings you can see. Was your estimate a good one? How can you decide?

The Magic Number and the Hepta-tree

Stage: 2 Challenge Level:

Find the exact difference between the largest ball and the smallest ball on the Hepta Tree and then use this to work out the MAGIC NUMBER!

Building Patterns

Stage: 2 Challenge Level:

Can you deduce the pattern that has been used to lay out these bottle tops?

Whole Numbers Only

Stage: 3 Challenge Level:

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

According to an old Indian myth, Sissa ben Dahir was a courtier for a king. The king decided to reward Sissa for his dedication and Sissa asked for one grain of rice to be put on the first square. . . .

Squaring the Circle

Stage: 3 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. . . .

Counting Sweets

Stage: 2 and 3 Challenge Level:

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

Does This Sound about Right?

Stage: 3 Challenge Level:

Examine these estimates. Do they sound about right?