Working systematically

There are 604 NRICH Mathematical resources connected to Working systematically

problem

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Greater than or less than?

Age

7 to 11

Challenge level

Use the numbers and symbols to make this number sentence correct. How many different ways can you find?

problem

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Unit differences

Age

5 to 7

Challenge level

This challenge is about finding the difference between numbers which have the same tens digit.

problem

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Round the dice decimals 1

Age

7 to 11

Challenge level

Use two dice to generate two numbers with one decimal place. What happens when you round these numbers to the nearest whole number?

problem

Favourite

Round the three dice

Age

7 to 11

Challenge level

What happens when you round these three-digit numbers to the nearest 100?

problem

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Round the dice decimals 2

Age

7 to 11

Challenge level

What happens when you round these numbers to the nearest whole number?

problem

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Round the four dice

Age

7 to 11

Challenge level

This activity involves rounding four-digit numbers to the nearest thousand.

problem

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Shape draw

Age

7 to 11

Challenge level

Use the information on these cards to draw the shape that is being described.

problem

Favourite

Through the window

Age

7 to 11

Challenge level

My local DIY shop calculates the price of its windows according to the area of glass and the length of frame used. Can you work out how they arrived at these prices?

game

Favourite

Dicey perimeter, dicey area

In this game for two players, you throw two dice and find the product. How many shapes can you draw on the grid which have that area or perimeter?

problem

Favourite

Play to 37

Age

7 to 11

Challenge level

In this game for two players, the idea is to take it in turns to choose 1, 3, 5 or 7. The winner is the first to make the total 37.

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Working mathematically

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Working systematically

Greater than or less than?

Unit differences

Round the dice decimals 1

Round the three dice

Round the dice decimals 2

Round the four dice

Shape draw

Through the window

Dicey perimeter, dicey area

Play to 37