Maths Home Learning

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Hi Year 5 children,

We are all missing you lots and are very proud of how hard we know you are working and how you’re dealing with everything being so different. It isn’t easy and we know you are missing friends- think about all the fun you will have when this is over! If you want to talk to your teachers or need any help with any of the learning, please email us at year5@kfos.co.uk

For a bit of fun, each week somewhere in the Maths slides you will find an update about something my (Miss Law’s) dog Bonnie has been up to and a photo of her. You will have to read the slides really carefully!

Monday 11th –Friday 15th May

For the answers, look at the end of the PowerPoint once you have completed your daily lesson.

For further support, more practice questions and for challenges, log onto MyMathsusername: knaphill password: cosine185

The White Rose website has a range of videos that explain different aspects of Maths.

https://whiterosemaths.com/homelearning/year-5/

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This week you will be adding and subtracting decimal numbers. Friday’s lesson will be a Mathleticstask, to make a change.

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Monday -Starter

Challenge- Express the same value in other ways. For example, 5/10= ½ or 50%.

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Record what this number is in your Home Learning book, then answer the questions.

The answers are on the next slide.

Monday- Adding Decimals

Remember decimals are part of whole numbers.

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0.412

One more hundredth more is 0.422

You need to add 8 more thousandths before the hundredths change.

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Optional – You could follow this link to a short video that explains how to add decimals, click on Week 1halfway down the page, then Lesson 1, adding decimals:

https://whiterosemaths.com/homelearning/year-5/

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Meet it tasks:

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Beat it/Smash it:

4. Explain whether you think Teddy is correct or has made mistakes, then correct any errors.

7. Explain who (Eva or Rosie) is correct and why.

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Challenge 1: For each calculation, estimate what you expect the answer to be, before calculating the actual answer. This will show whether you’ve fully understand the value of each decimal number.

For example, 0.454+ 0.323 I am going to round to 0.5+0.3= 0.8 Then calculate using the formal written method as set out in the Meet it slide.

Challenge 2:

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Tuesday -Starter

Challenge- Express the same value in other ways. For example, 96/100= 48/50= 96%

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Tuesday – adding decimals

Today we are going to continue looking at adding decimal numbers, including when there are a different number of digits after the decimal place.

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We will be using the column method, but firstly let’s check that you have understood the value of each part of this calculation.

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1. 2.

3.

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1. 2.

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We use a 0 in the hundredths column, so that we don’t get confused with our place value.

Bonnie’s favourite time of the day is when she goes for her walk. She loves feeling the wind in her hair as she sprints around! This week Bonnie will be celebrating her 4th birthday, she will certainly be having lots of treats.

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Meet it: Beat it: Smash it:

Challenge:

1.

2.

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Wednesday - Starter

Hint:Before you add or subtract these fractions, make sure they have a common denominator (the bottom number).

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What is a decimal number? Part of a whole number.

When might you need to be subtracting decimals?When spending money, cutting materials for example lengths of material, lengths of wood for flooring, or weight of materials for example if you have 1kg of flour and take 250g away to use in baking.

Wednesday – Subtracting Decimals

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Most of the time it is best to use the written method of column subtraction, but sometimes it is easier and quicker to subtract decimals mentally.

If you went to a shop with £2.50 in your pocket and wanted to buy a new pen for £1.20, how would you work this out mentally?

£2.50- £1.20

£2.50- £1= £1.50£1.50- 0.20= £1.30

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Meet it Task:

Use the written method to solve these Calculate these in your head Select your own method

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Beat it Task:

Use the written method to solve these Calculate these in your head Select your own method

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Smash it Task:

Use the written method to solve these Calculate these in your head Select your own method

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Thursday - Starter

Select at least 2 of these calculations to work out.

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Addition and Subtraction Problem Solving

This is a decimal tower, look closely at it and see what you notice.

Did you see that two numbers next to each other add up to the number above?

3.7+5.6 does this equal 9.3?

5.6+8.5 does this equal 14.1?

Yes!

If you had 3.7 and the number above 9.3, but didn’t have the number 5.6, how could you work it out?

3.7 + ?= 9.3

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Addition and Subtraction Problem Solving

If you had 3.7 and the number above 9.3, but didn’t have the number 5.6, how could you work it out?

3.7 + ?= 9.3

So this means what do you need to add to 3.7 to get to 9.3?

To solve this we can use the inverse (opposite) operation of subtraction. 8 1

9.3- 3.7=? - 9.33.7

5.6

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Task-Everyone should start on the Meet it completing at least 2 towers before moving onto the

Beat it, if you’re confident.Meet it:

To find all the missing numbers from the blocks, you need to start with the numbers you have. So on question 1, 3.3+ 1.2 gives you the number above it 4.5.

For some blocks you will need to use subtraction, for example on question 3 to find the block next to 3.6 you have to find what add 3.6 gives you 4.7.?+ 3.6= 4.7 or 4.7-3.6=?

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Beat it: Smash it:

Challenge:Draw your own tower of blocks using decimal numbers to 2 decimal places.

Somewhere in the tower include 12.34

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Friday -Starter

Challenge: Next to each pair, record the equivalent percentage and at least 2 equivalent fractions.

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Friday-Adding and Subtracting Decimals

For each of these number sentences, record in your Home Learning book 2 possible mistakes that could be made when calculating the answers.

For example, 7.8+ 58.23, you could not line the decimal places up and end up adding 7 to 5.

For today’s task, please log onto your Mathletics account and complete the set tasks. We thought this would make a change from working in your books!

If you cannot use a computer to access Mathletics, create your own 9 towers of decimal numbers, linked to yesterday’s lesson.

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Answers- Monday

Starter-2/10= 0.26/10= 0.65/10= 0.57/10= 0.73/10= 0.3

Meet it:

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Beat it/Smash it answers:

4. Teddy is wrong, straight away £68 is way too much. He has also not lined up the decimal points correctly. The answer should be £16.95.

7. Eva has added 1.18 a number can have any number of digits. Rosie is wrong, it doesn’t say Eva added some tenths.

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Monday Challenges:

0.777

1.652

0.597

1.137

6.202

0.232

Challenge 2: A- 34.4B- 10.9C- 4.7

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Answers- Tuesday

Starter: 96/100= 0.9661/100= 0.6133/100= 0.3358/100= 0.5856/100= 0.56

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Answers- Wednesday

Starter: ¼=3/12 and 1/3= 4/12 so 7/12

1/7= 2/14 and ½= 7/14So 9/14

Meet it:

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Wednesday Beat it answers:

Wednesday Smash it answers:

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Meet it:

Thursday -Answers

Beat it:

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Thursday -Answers

Smash it:

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Friday Answers

This is just for the starter- the rest of the task was to be completed on Mathletics.

¼= 0.254/5= 0.8¾= 0.751/5= 0.23/10= 0.33/5= 0.61/10= 0.17/10= 0.7