List

Number Stage 2

The add and take-away path
problem

The add and take-away path

Age
5 to 7
Challenge level
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Two children made up a game as they walked along the garden paths. Can you find out their scores? Can you find some paths of your own?

Largest Even
problem

Largest even

Age
5 to 11
Challenge level
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How would you create the largest possible two-digit even number from the digit I've given you and one of your choice?

Different Sizes
problem

Different sizes

Age
5 to 11
Challenge level
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A simple visual exploration into halving and doubling.

How would we count?
problem

How would we count?

Age
5 to 11
Challenge level
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An activity centred around observations of dots and how we visualise number arrangement patterns.

That number square
problem

That number square

Age
5 to 11
Challenge level
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Exploring the structure of a number square: how quickly can you put the number tiles in the right place on the grid?

Snail One Hundred
game
Favourite

Snail one hundred

Age
5 to 7
Challenge level
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In this game, you throw a dice and move counters along the snail's body and in a spiral around the snail's shell. It is about understanding tens and ones.

Round the Two Dice
problem

Round the two dice

Age
5 to 7
Challenge level
filled star empty star empty star

This activity focuses on rounding to the nearest 10.

Unit Differences
problem

Unit differences

Age
5 to 7
Challenge level
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This challenge is about finding the difference between numbers which have the same tens digit.

Constant Counting
problem

Constant counting

Age
5 to 7
Challenge level
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You can make a calculator count for you by any number you choose. You can count by ones to reach 24. You can count by twos to reach 24. What else can you count by to reach 24?
Skip Counting
problem

Skip counting

Age
5 to 7
Challenge level
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Find the squares that Froggie skips onto to get to the pumpkin patch. She starts on 3 and finishes on 30, but she lands only on a square that has a number 3 more than the square she skips from.
Two flowers with the numbers 15 and 16 on them
problem

Butterfly flowers

Age
5 to 7
Challenge level
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Can you find two butterflies to go on each flower so that the numbers on each pair of butterflies adds to the number on their flower?

Are you well Balanced?
problem

Are you well balanced?

Age
5 to 7
Challenge level
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Can you work out how to make each side of this balance equally balanced? You can put more than one weight on a hook.

Clapping Times
problem

Clapping times

Age
5 to 7
Challenge level
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If you count from 1 to 20 and clap more loudly on the numbers in the two times table, as well as saying those numbers loudly, which numbers will be loud?

100 Square Jigsaw
problem

100 square jigsaw

Age
5 to 7
Challenge level
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Can you complete this jigsaw of the 100 square?

Two-digit targets
problem

Two-digit targets

Age
5 to 7
Challenge level
filled star empty star empty star

You have a set of the digits from 0 to 9. Can you arrange these in the five boxes to make two-digit numbers as close to the targets as possible?

Strike it out
problem

Strike it out

Age
5 to 11
Challenge level
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Use your addition and subtraction skills, combined with some strategic thinking, to beat your partner at this game.

Sort them out (1)
problem

Sort them out (1)

Age
5 to 7
Challenge level
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Can you each work out the number on your card? What do you notice? How could you sort the cards?

problem

Cube bricks and daisy chains

Age
5 to 7
Challenge level
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Daisy and Akram were making number patterns. Daisy was using beads that looked like flowers and Akram was using cube bricks. First they were counting in twos.

Bugs in the Garden
problem

Bugs in the garden

Age
5 to 7
Challenge level
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In Sam and Jill's garden there are two sorts of bugs with 7 spots or 4 spots. What numbers of total spots can you make?
problem

Noah

Age
5 to 7
Challenge level
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Noah saw 12 legs walk by into the Ark. How many creatures did he see?

Magic Plant
problem

Magic plant

Age
5 to 7
Challenge level
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On Friday the magic plant was only 2 centimetres tall. Every day it doubled its height. How tall was it on Monday?

Making Sticks
problem

Making sticks

Age
5 to 7
Challenge level
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Kimie and Sebastian were making sticks from interlocking cubes and lining them up. Can they make their lines the same length? Can they make any other lines?

What number?
problem

What number?

Age
5 to 7
Challenge level
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I am less than 25. My ones digit is twice my tens digit. My digits add up to an even number.
Halving
problem

Halving

Age
5 to 7
Challenge level
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These pictures show squares split into halves. Can you find other ways?

Queue
problem

Queue

Age
5 to 7
Challenge level
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25 students are queuing in a straight line. How many are there between Julia and Jenny?
Making Shapes
problem

Making shapes

Age
5 to 7
Challenge level
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Arrange any number of counters from these 18 on the grid to make a rectangle. What numbers of counters make rectangles? How many different rectangles can you make with each number of counters?
Wallpaper
problem

Wallpaper

Age
5 to 7
Challenge level
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These pieces of wallpaper need to be ordered from smallest to largest. Can you find a way to do it?

Secret Number
problem

Secret number

Age
5 to 7
Challenge level
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Annie and Ben are playing a game with a calculator. What was Annie's secret number?

2, 4, 6, 8
problem

2, 4, 6, 8

Age
5 to 7
Challenge level
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Using the cards 2, 4, 6, 8, +, - and =, what number statements can you make?

problem

Grouping goodies

Age
5 to 7
Challenge level
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Pat counts her sweets in different groups and both times she has some left over. How many sweets could she have had?

Let us divide!
problem

Let us divide!

Age
7 to 11
Challenge level
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Look at different ways of dividing things. What do they mean? How might you show them in a picture, with things, with numbers and symbols?

Coded hundred square
problem

Coded hundred square

Age
7 to 11
Challenge level
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This 100 square jigsaw is written in code. It starts with 1 and ends with 100. Can you build it up?

Which symbol?
problem

Which symbol?

Age
7 to 11
Challenge level
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Choose a symbol to put into the number sentence.

Fingers and Hands
problem

Fingers and hands

Age
7 to 11
Challenge level
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How would you count the number of fingers in these pictures?