Giraffe Class Maths

Term 6 Week 7 Activities

Revision:

Multiplication

and

Division

Professor Assessor (about 30 minutes)

• Professor Assessor is really important because it gives your teachers and TAs, as well as yourselves and your parents, the chance to analyse your learning and to track your progress.

• Well done to everyone who completed the Fractions Test I set last week!

• This week, I have set you a Home Learning activity on Addition and Subtraction, to follow up last week’s work.

• Please log in and have a go – you only have one week to complete this!

• You were sent home with your login details in your home learning packs. To access the site, please click on the link: https://www.prof123.co.uk/Start. The school code is: BRN

Mathletics (about 30 minutes)

• Just like Professor Assessor, Mathletics is really important because it gives your teachers and TAs, as well as yourselves and your parents, the chance to analyse your learning and to track your progress.

• Well done to those of you that completed the Fractions work!

• This week, I have set you some work on Addition and Subtraction to do. Please log in and have a go!

• https://www.mathletics.com/uk/

Introduction

• This week, we are going to revise Multiplication and Division. We will: – recall and use multiplication and division facts for the 3, 4 and 8

multiplication tables; – write and calculate mathematical statements for multiplication and

division using the multiplication tables that you know, including for two-digit numbers times one-digit numbers, using mental and progressing to formal written methods;

– solve problems, including missing number problems, involving multiplication and division.

• Each week, I will also set you a Mental Maths worksheet, (choose a sheet)

as well as some problem solving to do!

• I’d also like you to spend some time each week on Professor Assessor and Mathletics. This might be revising topics we have already covered, work on our current topics, or times tables practise. I will set you tasks or assessments each week to complete.

Task 1: (20 minutes) Mental Maths! Easier Sheet (See next page for Challenge Sheet – choose which one you’d like to do!)

Answers: Task 1: (20 minutes) Mental Maths! Easier Sheet (See next page for Challenge Sheet – choose which one you’d like to do!)

Task 1: (20 minutes) Mental Maths! Challenge Sheet (See previous page for Easier Sheet – choose which one you’d like to do!)

Answers: Task 1: (20 minutes) Mental Maths! Challenge Sheet (See previous page for Easier Sheet – choose which one you’d like to do!)

Task 2:

Problem Solving – Addition Problem!

(20 minutes)

Use your addition skills to fill in the missing

numbers. Each missing number is a

number between 1 and

12.

Answers: Task 2:

Problem Solving – Addition Problem!

(20 minutes) Use your

addition skills to fill in the

missing numbers.

Each missing number is a

number between 1 and

12.

The 3 Times Table

• Spend some time revising your 3 Times Table.

• Practise it on paper, recite it, and sing along to these songs:

• 3 Times Table set to Moana's How Far I'll Go:

• https://www.youtube.com/watch?v=uneATAeac7Q

• 3 Times Table Song - Journey COVER: • https://www.youtube.com/watch?v=5

vNwMWiNxgE

The 4 Times Table

• Spend some time revising your 4 Times Table.

• Practise it on paper, recite it, and sing along to these songs:

• 4 Times Table set to The Chainsmokers' Something Just Like This:

• https://www.youtube.com/watch?v=TDxwIDtdMk4

• 4 Times Tables Song - Disney Frozen COVER: Let it go, Sing-along:

• https://www.youtube.com/watch?v=bjVIQ7RpMvE

The 8 Times Table

• Spend some time revising your 8 Times Table.

• Practise it on paper, recite it, and sing along to these songs:

• 8 times table set to Miley Cyrus' Wrecking Ball:

• https://www.youtube.com/watch?v=gjNDS4WfKvA

• 8 Times Table Song - Taylor Swift Blank Space (MattyBRaps & Ivey Meeks Cover) - 8 times table trick:

• https://www.youtube.com/watch?v=aiT3uADZLXw

Mental Multiplication

How to multiply in your head: • What is 6 x 40? • 6 x 40 is equal to 6 x 4 x 10 • 6 x 4 is equal to 6 x 2 x 2 • 6 x 2 x 2 = 24 • 24 x 10 = 240 • This means 6 x 40 = 240 • Break down the calculation as much as you need

to. If you know 6 x 4 = 24, you don't have to break it down into 6 x 2 x 2.

Mental Multiplication

How to multiply in your head: • Watch this short video and do the check activity

below it: • https://www.bbc.co.uk/bitesize/topics/z36tyrd/a

rticles/zwghk2p

Short Multiplication

How to multiply a 2-digit number by a 1-digit number: • When multiplying a 2-digit number by a 1-digit number you

can use both mental and written methods. • Let's take a look at an example of solving a multiplication

problem in your head. Before you press play on the below video, have a think about how you would work out 19 x 5?

• https://www.bbc.co.uk/bitesize/articles/zfgm6v4

Short Multiplication

• Find out more about multiplying a 2-digit number by a 1-digit number using a written method with this interactive guide.

• Once you've opened it, you can use the Next button on the bottom right-hand side of the screen to work your way through each page.

• https://static.mymaths.co.uk/xml/player/v2.2.9/build/index.html?contentPath=../../../en/primary/number/multiply_divide_written/short_multiplication_lesson

Division with Remainders

• Sometimes, when you do a division, there will be a number left over. This is called the 'remainder'.

• 7 ÷ 2 = 3 r1.

• You may need to round up or round down, to make a whole number.

Division with Remainders

• Watch this short video and do the quiz below it:

• https://www.bbc.co.uk/bitesize/topics/z36tyrd/articles/zcjh8mn

Short Division

• If numbers are too difficult to divide in your head, use a written method.

• Short division will sometimes give an answer with a remainder (r), which you can round up or round down.

• To find the answer to 365 ÷ 7 see if 3 (the hundreds) can be divided by 7.

• It cannot, so add the tens digit. 36 ÷ 7 = 5 r 1. • Write down the 5 and carry over the 1 so 5 becomes 15. • 15 ÷ 7 = 2 r 1. • Write those numbers down. The answer is 52 r 1.

Short Division

• Watch this short video about short division:

• https://www.bbc.co.uk/bitesize/topics/z36tyrd/articles/zgxdfcw

Rounding Numbers

• Rounding to the nearest 10 • To round a number to the nearest 10, look at the

units digit. If the units digit is 5 or more, round up. If the units digit is 4 or less, round down.

• The last digit in 356 is 6. So we round it up to 360. • The last digit of 352 is 2. So we round it down to

350. • 475 ends in a 5. We always round a 5 up. So 475

rounds up to 480.

Rounding Numbers

How to add and subtract in your head: Rounding numbers • Rounding numbers to the nearest 1, 10 or 100

can help with lots of mental maths problems. • To add 9 to another number, add 10 and then

subtract 1: 36 + 9 = 36 + 10 - 1 = 45 • To add 18 to another number, add 20 and then

subtract 2: 48 + 18 = 48 + 20 - 2 = 66 • To add 97 to another number, add 100 and then

subtract 3: 439 + 97 = 439 + 100 - 3 = 536

Place value

• We use place value headings like 1, 10, 100, and 1000.

• These help us do sums and see which numbers are bigger than others.

• A number is made of one or more digits.

• The number 6379, for example, is made of the digits 6, 3, 7 and 9.

• 6 thousands, 3 hundreds, 7 tens and 9 ones.

Place value

• Watch this short video to help you revise place value (it’s very funny!), then do the three check activities and the quiz afterwards:

• https://www.bbc.co.uk/bitesize/topics/zsjqtfr/articles/z9w3g82

Place Value

Place Value

Rounding Numbers

• Rounding to the nearest 100

• To round a number to the nearest 100, look at the tens digit. If the tens digit is 5 or more, round up. If the tens digit is 4 or less, round down.

• The tens digit in 3281 is 8. So we round it up to 3300.

• The tens digit of 3216 is 1. So we round it down to 3200

Rounding Numbers

• Rounding to the nearest 1000

• To round a number to the nearest 1000, look at the hundreds digit. If the hundreds digit is 5 or more, round up. If the hundreds digit is 4 or less, round down.

• The hundreds digit in 4559 is 5. So we round it up to 5000.

• The hundreds digit of 4295 is 2. So we round it down to 4000.

Rounding Numbers

• Watch this short video and do the check activities and the quiz:

• https://www.bbc.co.uk/bitesize/topics/zh8dmp3/articles/zpx2qty

Task 3:

(20 minutes)

recall and use

multiplication

and division

facts for the 3

multiplication

table

Can you fill in

the gaps?

E.g.

1) 3 x 3 = 9,

3 x 4 = 12,

etc.

Answers:

Task 3:

(20 minutes)

recall and use

multiplication

and division

facts for the 3

multiplication

table

Can you fill

in the gaps?

E.g.

1) 3 x 3 = 9,

3 x 4 = 12,

etc.)

Task 4:

(20 minutes)

recall and use

multiplication

and division

facts for the 4

multiplication

table

Can you fill in

the gaps?

E.g.

1) 4 x 2 = 8,

4 x 3 = 12,

etc.

Answers:

Task 4:

(20 minutes)

recall and

use

multiplication

and division

facts for the

4

multiplication

table

Can you fill

in the gaps?

E.g.

1) 4 x 2 = 8,

4 x 3 = 12,

etc.

Task 5:

(20 minutes)

recall and use

multiplication

and division

facts for the 8

multiplication

table

Can you fill in

the gaps?

E.g.

1) 8 x 2 = 16,

8 x 3 = 24,

etc.

Answers:

Task 5:

(20 minutes)

recall and

use

multiplication

and division

facts for the

8

multiplication

table

Can you fill

in the gaps?

E.g.

1) 8 x 2 = 16,

8 x 3 = 24,

etc.

Task 6:

(20

minutes)

Times

Tables

Challenge!

Easy!

Choose

either this

sheet or

the next

one, and

fill in the

table!

Answers:

Task 6:

(20

minutes)

Times

Tables

Challenge!

Easy!

Choose

either this

sheet or

the next

one, and

fill in the

table!

Task 6:

(20

minutes)

Times

Tables

Challenge!

Challenge!

Choose

either this

sheet or

the

previous

one, and

fill in the

table!

Answers:

Task 6:

(20

minutes)

Times

Tables

Challenge!

Challenge!

Choose

either this

sheet or

the

previous

one, and

fill in the

table!

Task 7 Help

• With the word problems, you need to pick out the numbers and write a maths sentence that you can solve.

• E.g. A packet of sweets contains 10 sweets. How many sweets in 5 packs?

• 10 x 5 = 50.

• E.g. How many legs on 11 dogs? • 4 x 11 = 44.

Task 7:

(15 minutes)

write and

calculate

mathematical

statements for

multiplication

Can you write

maths

sentences for

these word

problems,

and solve

them?

Answers:

Task 7:

(15 minutes)

write and

calculate

mathematical

statements for

multiplication

Can you write

maths

sentences for

these word

problems,

and solve

them?

Task 8 Help

• Here is a video on the school YouTube channel of Miss Pickup showing you how to do short multiplication:

• https://www.youtube.com/watch?v=tLL3SfpFeZ8

• You can also check back to the help section above for further help with short multiplication.

Task 8:

(20 minutes)

write and calculate

mathematical statements

for multiplication

including for two-digit

numbers times one-digit

numbers, using formal

written methods.

Can you answer these

short multiplication

questions?

Don’t forget the elves

under the shelves!

Answers:

Task 8:

(20 minutes)

write and calculate

mathematical statements

for multiplication

including for two-digit

numbers times one-digit

numbers, using formal

written methods.

Can you answer these

short multiplication

questions?

Don’t forget the elves

under the shelves!

Task 9 Help

• With the word problems, just like in Task 7, you need to pick out the numbers and write a short multiplication calculation that you can solve.

• E.g. A bus travelled for 3 hours at 44 miles an hour. How far has it travelled?

4 4

X 3

1 3 2

1

Task 9:

(20 minutes)

write and calculate

mathematical

statements for

multiplication

including for two-

digit numbers

times one-digit

numbers, using

formal written

methods.

Can you write

short

multiplication

calculations for

these word

problems, and

solve them?

Answers:

Task 9:

(20 minutes)

write and

calculate

mathematical

statements for

multiplication

including for two-

digit numbers

times one-digit

numbers, using

formal written

methods.

Can you write

short

multiplication

calculations for

these word

problems, and

solve them?

Task 10 Help

• With the word problems, you need to pick out the numbers and write a maths sentence that you can solve.

• E.g. There are 12 cakes in each packet. I need 60 cakes. How many packets should I buy?

• 60 ÷ 12 = 5

• E.g. I have 70 sweets. I eat the same number every day for a week. How many do I eat each day?

• 70 ÷ 7 = 10

Task 10:

(15 minutes)

write and

calculate

mathematical

statements for

division

Can you write

maths

sentences for

these word

problems, and

solve them?

Answers:

Task 10:

(15 minutes)

write and

calculate

mathematical

statements for

division

Can you write

maths

sentences for

these word

problems,

and solve

them?

Task 11 Help

• Here is a video on the school YouTube channel of Miss Pickup showing you how to do short division:

• https://www.youtube.com/watch?v=fnhmsCVOPA4

• You can also check back to the help section above for further help with short division.

Task 11:

(20 minutes)

write and calculate

mathematical

statements for

division including for

two-digit numbers

divided by one-digit

numbers, using

formal written

methods.

Can you answer

these short division

questions?

Don’t forget the

parrots on the

shoulders, or the

remainders!

Answers:

Task 11:

(20 minutes)

write and calculate

mathematical

statements for

division including for

two-digit numbers

divided by one-digit

numbers, using

formal written

methods.

Can you answer

these short division

questions?

Don’t forget the

parrots on the

shoulders, or the

remainders!

Task 12:

(20 minutes)

Missing number

problems!

Can you fill in the

gaps in these

division calculations

using both your

division and

multiplication skills,

and your times

tables knowledge?

Answers:

Task 12:

(20 minutes)

Missing number

problems!

Can you fill in the

gaps in these

division calculations

using both your

division and

multiplication skills,

and your times

tables knowledge?

Mathsframe

• https://mathsframe.co.uk/

• This is the site we often use for maths games in school. If you have any free time, and you’ve done all the other activities, perhaps you’d like to spend some time on here!