# Year 5

### How much?

• While shopping, point out an item costing less than £1.
• Ask them to guess first.
See how close they come.
• If you see any items labelled, for example, ‘2 for £3.50’, ask them to work out the cost of 1 item for you, and to explain how they got the answer.

### Times tables

Say together the six times table forwards, then backwards. Ask your child questions, such as:

Nine sixes?           How many sixes in 42?

Six times four?            Forty-eight divided by six?

Three multiplied by six?      Six times what equals sixty?

Repeat with the seven, eight and nine times tables.

### Decimal number plates

• Each choose a car number plate with three digits.

P645 CJM

• Choose two of the digits, e.g. 4 and 6. Make the smallest and largest numbers you can, each with 1 decimal places, e.g. 4.6 and 6.4.
• Now find the difference between the two decimal numbers,

e.g. 6.4 – 4.6 = 1.8.

• Whoever makes the biggest difference scores 10 points.
• The person with the most points wins.

Play the game again, but this time score 10 points for the smallest difference, or 10 points for the biggest total.

### Finding areas and perimeters

Perimeter = distance around the edge of a shape

Area of a rectangle = length x breadth (width)

• Collect 5 or 6 used envelopes of different sizes.
• Ask your child to estimate the perimeter of each one to the nearest centimetre. Write the estimate on the back.
• Now measure. Write the estimate next to the measurement.
• How close did your child get?
• Now estimate then work out the area of each envelope.
• Were perimeters or areas easier to estimate? Why?

You could do something similar using an old newspaper, e.g.

• Work out which page has the biggest area used for photographs.
• Choose a page and work out the total area of news stories or adverts on that page.

### Car numbers

• Try reading a car number as a measurement in centimetres, then converting it to metres, e.g. 456cm, which is 4.56m, or 4m and 56cm.
• Try this with car numbers that have zeros in them, e.g. 307cm, which is 3.07m or 3m and 7cm; 370cm, which is 3.7m, or 3m and 70cm. These are harder!

Dicey subtractions

• Take turns to roll a dice twice.
• Fill in the missing boxes.

400o - 399o

e.g.   4002 - 3994

• Count on from the smaller to the larger number, e.g 3995, 3996, 3997, 3998, 3999, 4000, 4001, 4002.
• You counted on 8, so you score 8 points.
• Keep a running total of your score.
• The first to get 50 or more points wins.

### Tables

Make a times-table grid.

• Shade in all the tables facts that your child knows, probably the 1s, 2s, 3s, 4s, 5s and 10s.
• Some facts appear twice, e.g. 7 x 3 and 3 x 7, so cross out one
of each.
• Are you surprised how few facts are left?
• There might only be 10 facts to learn. So take one fact a day and make up a silly rhyme together to help your child to learn it,
e.g. nine sevens are sixty-three, let's have lots of chips for tea!

### Telephone challenges

• Challenge your child to find numbers in the telephone directory where the digits add up to 42.
• Find as many as possible in 10 minutes.
• On another day, see if they can beat their previous total.

Telephone: 01264 738 281

### Target 1000

• Roll a dice 6 times.
• Use the six digits to make two three-digit numbers.
• Add the two numbers together.
• How close to 1000 can you get?

### Car numbers

• Choose a car number.
• You may add or subtract 10, 20, 30, 40, 50, 60, 70, 80 or 90.
• Try to get as close as possible to 555.
• Who can get closest during a week?

### Dicey division

For this game you need a 1-100 board

(a snakes and ladders board will do),

a dice and 20 coins or counters.

• Take turns.
• Choose a two-digit number. Roll a dice. If you roll 1, roll again.
• If your two-digit number divides exactly by the dice number, put a coin on your chosen two-digit number. Otherwise, miss that turn.
• The first to get 10 counters on the board wins.

Line it up

You need a ruler marked in centimetres and millimetres.

• Use the ruler to draw 10 different straight lines on a piece of paper.
• Ask your child to estimate the length of each line and write the estimate on the line.
• Now give them the ruler and ask them to measure each line to the nearest millimetre.
• Ask them to write the measurement next to the estimate, and work out the difference.
• A difference of 5 millimetres or less scores 10 points. A difference of 1 centimetre or less scores 5 points.
• How close to 100 points can she get?

### Guess my number

• Choose a number between 0 and 1 with one decimal place, e.g. 0.6.
• Challenge your child to ask you questions to guess your number. You may only answer ‘Yes’ or ‘No’. For example, he could ask questions like ‘Is it less than a half?’
• See if he can guess your number in fewer than 5 questions.
• Now let your child choose a mystery number for you to guess.

Extend the game by choosing a number with one decimal place between 1 and 10, e.g. 3.6. You may need more questions!

Times tables