Workbook 6A
Chapter 2 Four Operations on Whole Numbers
Lessons 1 and 2 Using Mixed Operations
Printer-friendly version: Tuesday Maths blog Y6
Good morning Year 6!
Remember… the extension task is for everyone! So please challenge yourself and have a go! Remember, the blog is there to ask any questions so please ask away.
Have a look at the dots in the diagram below. Other than counting them one by one, there are other ways to determine the number of dots.
There are many different ways to formulate an expression. For this diagram, we can add on dots to form a bigger square with arrays and then subtract the extra dots to find the number of red dots. A
Have a look at this example of how to create expressions based on specific arrangements and then solve expressions using the correct order of operations:
For a calculation that has only one mathematical operation with two numbers, it is a simple case of either adding, subtracting, multiplying or dividing to find your answer.
But what about when there are several numbers, and different operations? Maybe you need to divide and multiply, or add and divide. What do you do then?
Fortunately, mathematics is a logic-based discipline. As so often, there are some simple rules to follow that help you work out the order in which to do the calculation. These are known as the ‘Order of Operations’.
I hope that helps!
Task:
- Have a look at these websites:
BBC BItesize: What is the order of operations?
2. Complete the MNP pages.
3. Try the extension: Year-6-Order-of-Operations-Maths-Mastery-Challenge-Cards
Good luck!
Mrs Avdiu xx
Done!
PS: There are four maths pages but the uploader is limited to 3. I had to send in the pages via email.
No problem. Super work Charles! Thank you
Hello Mrs Avdiu,
I have completed all the maths pages and the extension???
Well done Jade! How did you find it? 🙂
I have finished all the worksheets given 😉
Hi Lola 🙂 I am glad you’ve finished them. I hope you found them okay
Hi Mrs Avdiu ,i was wondering if you could give me some help on page 17 question 1 a(the shaded dots)
Thankyou
Sure! Let me have a look
Hi Ariella. If you look at the first example you’ll see that they looked at the grey dots first to get 9 x 4 = 36
Then she looked at the white dots to get 6 x 2 = 12
After this the answers were subtracted (36-12) to get 24. So there are 24 shaded dots.
In the question you are stuck on (1a), the expression that would help you to work out the number of shaded dots is 9 x 5 – 3x 5 – 2 x 2 which would equal 26. You can check this by counting the dots and you’ll see there are 26.
The 9 x 5 is because there are 5 rows of 9.
The take away 3 x 5 is because there are 5 lots of 3 that are not shaded in those rows of 9. Finally there are 2 lots of 2 unshaded which is why we have the 2 x 2 in the equation. Hope that helps!
Good Morning,
I have completed the tasks.
Well done Javier! How did you find it?
I am writing to say that I am going to do 5 bars of mathletics as well
Wow, that sounds great!
Done
Hi Year 6 🙂 it’s great to hear that so many of you completed the maths tasks. Well done!
thankyou!