YEAR 4 - MATHS
Week 7-8
YEAR 4 - MATHS Week 7-8 ACTIVITIES Activity 1 P lace value - Page - - PowerPoint PPT Presentation
YEAR 4 - MATHS Week 7-8 ACTIVITIES Activity 1 P lace value - Page 3 Activity 2 Order and compare numbers - Page 12 Activity 3 Order and compare numbers with decimals - Page 22 Activity 4 Rounding - Page 39 Activity 5 Rounding
Week 7-8
Activity 1 – Place value - Page 3 Activity 2 – Order and compare numbers - Page 12 Activity 3 – Order and compare numbers with decimals - Page 22 Activity 4 – Rounding - Page 39 Activity 5 – Rounding decimals – Page 54 Activity 6 – Negative numbers - Page 63 Activity 7 – Addition – Page 75 Activity 8 – Subtraction – Page 96 Activity 9 – Multiply 3 numbers – Page 114 Activity 10 – Multiplication and division facts – Page 121
Let’s warm up our brains ☺ Sometimes we may have to add together more than two numbers? Such as 7 + 12 + 3 + 5 = How can we do this efficiently?
Look k for facts cts you kn know 7 + 12 + 3 + 5 = so 10 + 12 + 5 then 10 + 12 + 5 so 10 + 17 = 27
How qu quick ckly y ca can you add these se numbers ers mental tally? ly? 6 + 13 + 3 + 4 = 5 + 12 + 3 + 5 13 + 7 + 3 + 2 = 12 + 8 + 1 + 9 = 6 + 13 + 4 + 4 =
What number is being represented below?
What number is being represented below? 5342
What number is being represented below?
5342
What does the 5 represent? What does the 3 represent? What does the 4 represent? What does the 2 represent?
What number is being represented below?
5342
What does the 5 represent? 5 thousands What does the 3 represent? 3 hundreds What does the 4 represent? 4 tens What does the 2 represent? 2 ones
You could represent this using place value counters…
5342
What does the 5 represent? 5 thousands What does the 3 represent? 3 hundreds What does the 4 represent? 4 tens What does the 2 represent? 2 ones
…or in a part whole model…
You could represent this using place value counters…
5342
What does the 5 represent? 5 thousands What does the 3 represent? 3 hundreds What does the 4 represent? 4 tens What does the 2 represent? 2 ones
…or in a part whole model… Use this to help you complete activity 1 (Maths Tasks Document – page 1)
Let’s warm up our brains ☺ How can we use our place value knowledge to add numbers mentally? Such as 320 + 150 = How can we do this efficiently?
320 + 150 = We can say 320 add 100 and 50 so you can count on… 320, 420, 470 320 + 150 = 470
Subtraction is similar 570 - 230 = We can say 570 subtract 200 and 30 so you can count backwards… 570, 370, 340 570 - 230 = 340
Use this to add and subtract these numbers as quickly as you can. 350 + 130 = 420 – 110 = 730 + 120 = 860 – 320 = 520 + 470 = 980 – 370 =
2,048 2,408 <
I have used activity 1 to partition these numbers. What comparisons could I make? You can see the comparisons I made on the next page.
2,048 2,408 <
2408 is grea eate ter r than an 2048. 2048 is le less ss than an 2408. The both have two thousands and eight
2048 has four tens but 2408 has four hundreds.
I can also use part whole models and I can compare more than two numbers.
1305 5 300 1000 1503 3 500 1000 1530 30 500 1000
What comparisons can you make?
1305, 1530 and 1503 – Here are some of my comparisons
1305.
1305, 1530 and 1503
You can use these comparisons to help you order the numbers in ascendin cending g order er 1305, 1503, 1530 And desce scendin nding g order der 1530, 1503, 1305
1305, 1530 and 1503
You can use these comparisons to help you order the numbers in ascendin cending g order er 1305, 1503, 1530 And desce scendin nding g order der 1530, 1503, 1305
Use these ideas to help you complete activity 2 (Maths Tasks document page 2)
Let’s warm up our brains ☺ How can we use our place value knowledge to add numbers mentally? Such as 456 + 231 = How can we do this efficiently?
456 + 231 = Again we can use partitioning 456 add 200 and 30 and 1 Then count up 456, 656, 686, 687
It works the same for subtraction 786 - 523 = Again we can use partitioning 786 subtract 500 and 20 and 3 Then count back 786, 286, 266, 263
Your turn 347 + 221 = 587 – 243 = 867 + 122 = 986 – 341 = 654 - 322
435.67 There is a decimal point. The numbers after the decimal point are worth less than one. It has two decimal places We would say four hundred and thirty-five point six seven not not four hundred and thirty-five point sixty seven.
435.67 When one is divided into ten equal parts, each part is one tenth of the whole. This can be written as 0.1 Our number has six tenths which can be written as 0.6.
435.67 When one is divided into a hundred equal parts, each part is one hundredth of the whole. This can be written as 0.01 Our number has seven hundredths which can be written as 0.07
Ones es ten enths hund ndredths redths
What numbers are represented below?
Ones es ten enths hund ndredths redths
Ones es ten enths hund ndredths redths
What numbers are represented below?
Ones es ten enths hund ndredths redths
Ten ens Ones es ten enths
hundre ndredt dths hs
What numbers are represented below?
Ten ens
es ten enths
hundre ndredt dths hs
Ten ens Ones es ten enths
hundre ndredt dths hs
What numbers are represented below?
Ten ens
es ten enths
hundre ndredt dths hs
Thousan ands Hundreds Tens Ones tenths
hundre ndredt dths hs
OOOOO OOOOOO OOOO OO OOOOOO OOOO
What numbers are represented below?
Thousan ands Hundreds Tens Ones tenths
hundre ndredt dths hs
OOO O OOOOO OO
Thousan ands Hundreds Tens Ones tenths
hundre ndredt dths hs
OOOOO OOOOOO OOOO OO OOOOOO OOOO
What numbers are represented below?
Thousan ands Hundreds Tens Ones tenths
hundre ndredt dths hs
OOO O OOOOO OO
Thousan ands Hundreds Tens Ones tenths
hundre ndredt dths hs
OOO OO OOOO O OOO OOOO
We can compare and order decimals just like we did in activity two.
Thousan ands Hundreds Tens Ones tenths
hundre ndredt dths hs
OOO OO OOOO O OOOO OOO
Thousan ands Hundreds Tens Ones tenths
hundre ndredt dths hs
OOO OO OOOO O OOO OOOO
We can compare and order decimals just like we did in activity two.
Thousan ands Hundreds Tens Ones tenths
hundre ndredt dths hs
OOO OO OOOO O OOOO OOO
We can compare and order numbers with decimal places just like we did in activity two. Use these ideas to help you complete activity three (Maths Task document page 3)
Let’s warm up our brains ☺ Go to the game and select ‘addition- within 100’ option https://www.topmarks.co.uk/Flash.aspx?f=loopcardsv6 CHALLENGE – Choose other addition and subtraction games of your choice.
Look at ‘a’ on the number line. What is the previous and next multiple of 1000?
Look at ‘a’ on the number line. What is the previous and next multiple of 1000?
Which multiple of 1000 is it closet to? If your are rounding to the nearest 1000 you have to find the multiple of 1000 it is closest to.
Which multiple of 1000 is it closet to? If your are rounding to the nearest 1000 you have to find the multiple of 1000 it is closest to.
Look at ‘b’ on the number line. What is the previous and next multiple of 1000?
Look at ‘b’ on the number line. What is the previous and next multiple of 1000?
Which multiple of 1000 is it closet to? If your are rounding to the nearest 1000 you have to find the multiple of 1000 it is closest to.
Which multiple of 1000 is it closet to? If your are rounding to the nearest 1000 you have to find the multiple of 1000 it is closest to.
Thinking about what you have just learnt. What do you think you do if you are rounding to the nearest 10 or 100?
Thinking about what you have just learnt. What do you think you do if you are rounding to the nearest 10 or 100? If your are rounding to the nearest 10 you have to find the multiple of 10 it is closest to. If your are rounding to the nearest 100 you have to find the multiple of 100 it is closest to.
Use your learning and look at these rounding rules to help you complete activity 4 (M (Maths aths Task sks s Document cument page 4)
Let’s warm up our brains ☺ Play game 1 to practise your mental addition and subtraction https://www.topmarks.co.uk/Flash.aspx?a=activity13 CHALLENGE – Also play games two and three
Wh What at do you rem emem ember er ab about t rounding ding an and t the e rule les? s?
If your are rounding to the nearest 10 you have to find the multiple of 10 that it is closest to. If your are rounding to the nearest 100 you have to find the multiple
If your are rounding to the nearest 1000 you have to find the multiple
To Today ay we ar e are e lo looking ing at at nu number ers s wit ith h one ne dec ecim imal al pl plac ace a e and r round nding ing to the e nea eares est whole
er.
Look k at at t the e le letters.
Whic ich 2 w whole le nu numbers ers ar are t e they ey bet etwee een? n?
Look k at at t the e le letters.
Whic ich 2 w whole le nu numbers ers ar are t e they ey bet etwee een? n?
Look k at at t the e le letters.
Whic ich whole le nu number er ar are t e they ey clo lose sest st to?
Look k at at t the e le letters.
Whic ich whole le nu number er ar are t e they ey clo lose sest st to?
Use se yo your r le lear arni ning ng to compl plete ete ac activ ivity ity 5 ( (Mat aths hs Tas asks s Document ent pa page 5) e 5)
Let’s warm up our brains ☺ 2 x tables hit the button game https://www.topmarks.co.uk/maths-games/hit-the-button
Buildings In some buildings, if you watch the floors as you go down in a lift, you’ll see negative numbers. I get in a lift at floor two and go down. 3, 2, 1, 0, -1, -2 In this example building, -2 is the second floor underground.
(Maths Tasks Document – page 7)
Let’s warm up our brains ☺ Play archery addition – 2s and 5s https://mathsframe.co.uk/en/resources/resource/399/Arch ery-Arithmetic-Multiplication
Step 1 – Add the ones If the number is higher than ten
the tens column and write the
Step 1 – Add the ones If the number is higher than ten
the tens column and write the
Step 1 – Add the ones If the number is higher than ten
the tens column and write the
Step 2 – Add the tens (don’t forget any tens carried from the
If the number is higher than ten tens, carry the hundreds underneath the hundreds column and write the tens in the tens column
Step 1 – Add the ones If the number is higher than ten
the tens column and write the
Step 2 – Add the tens (don’t forget any tens carried from the
If the number is higher than ten tens, carry the hundreds underneath the hundreds column and write the tens in the tens column
Step 3 – Add the hundreds (don’t forget any hundreds carried from the tens) If the number is higher than ten hundreds, carry the thousands underneath the thousands column and write the hundreds in the hundreds column
Step 3 – Add the hundreds (don’t forget any hundreds carried from the tens) If the number is higher than ten hundreds, carry the thousands underneath the thousands column and write the hundreds in the hundreds column
Step 3 – Add the hundreds (don’t forget any hundreds carried from the tens) If the number is higher than ten hundreds, carry the thousands underneath the thousands column and write the hundreds in the hundreds column Step 4 – Add the thousands (don’t forget any thousands carried from the hundreds)
Step 3 – Add the hundreds (don’t forget any hundreds carried from the tens) If the number is higher than ten hundreds, carry the thousands underneath the thousands column and write the hundreds in the hundreds column Step 4 – Add the thousands (don’t forget any thousands carried from the hundreds)
Use your learning to complete activity 7. (Maths Task Document page 9)
Let’s warm up our brains ☺ Play learn your tables– 2s and 5s and 10s http://www.learnyourtables.co.uk/en/index2.htm
Step 1 – Subtract the ones.
Step 1 – Subtract the ones.
Step 1 – Subtract the ones. Step 2 – Subtract the tens
Step 1 – Subtract the ones. Step 2 – Subtract the tens
Step 1 – Subtract the ones. Step 2 – Subtract the tens Step 3 – Subtract the hundreds
Step 1 – Subtract the ones. Step 2 – Subtract the tens Step 3 – Subtract the hundreds
Step 1 – Subtract the ones. Step 2 – Subtract the tens Step 3 – Subtract the hundreds Step 4 – Subtract the thousands
Step 1 – Subtract the ones. Step 2 – Subtract the tens Step 3 – Subtract the hundreds Step 4 – Subtract the thousands
Step 1 – Subtract the ones.
Step 1 – Subtract the ones. 3 – 8 My answer would be a negative number so I need to exchange. I am going to take one ten from the tens column so my 3 ones become 13 ones. 13 – 8 = 5 6 1
Step 1 – Subtract the ones. Step 2 – Subtract the tens 6 1
Step 1 – Subtract the ones. Step 2 – Subtract the tens 6 1
Step 1 – Subtract the ones. Step 2 – Subtract the tens 60 – 40 Step 3 – subtract the hundreds 6 1
Step 1 – Subtract the ones. Step 2 – Subtract the tens 60 – 40 Step 3 – subtract the hundreds 100 – 700 (I need to exchange again) 1100 – 700 = 400 6 1 4 1
Step 1 – Subtract the ones. Step 2 – Subtract the tens 60 – 40 Step 3 – subtract the hundreds Step 4 – subtract the thousands 6 1 4 1
Step 1 – Subtract the ones. Step 2 – Subtract the tens Step 3 – subtract the hundreds Step 4 – subtract the thousands 6 1 4 1
Use your learning to complete activity 8. (Maths Task Document page 10)
Let’s warm up our brains ☺ Play bowling and practise your 2, 5, 10, 3 and 4 times tables https://mathsframe.co.uk/en/resources/resource/504/Supe r-Maths-Bowling-Multiplication
In this activity, we are going to use the multiplication skills we have been practising each day to multiply 3 numbers. But first, what happens if we multiply by 1 or zero?
When we multiply by zero, the answer is always… zero 12 x 0 = 0 0 x 5 = 0 Eve ven th this is multiplicati tion is is easy – I I saw a zero so
the answer must be be zero. 5 5 × 11 11 × 9 9 × 2 2 × 0 0 × 5 5 × 15 15 × 25 = 0
Let’s warm up our brains ☺ Practise your 2, 5, 10, 3 and 4 times tables. Choose your favourite game from the week or Times Table Rock Stars.
(Maths Tasks Document page 13)