€¦ · Web viewWork with variables. Use logical reasoning to explain how some simple algorithms work
Today we will be learning to explain the methods and reasoning used to complete calculations.
-
Upload
kory-hutchinson -
Category
Documents
-
view
212 -
download
0
Transcript of Today we will be learning to explain the methods and reasoning used to complete calculations.
![Page 1: Today we will be learning to explain the methods and reasoning used to complete calculations.](https://reader036.fdocuments.net/reader036/viewer/2022083006/56649f335503460f94c4f766/html5/thumbnails/1.jpg)
![Page 2: Today we will be learning to explain the methods and reasoning used to complete calculations.](https://reader036.fdocuments.net/reader036/viewer/2022083006/56649f335503460f94c4f766/html5/thumbnails/2.jpg)
Today we will be learning
to explain the methods and reasoning used to complete calculations.
![Page 3: Today we will be learning to explain the methods and reasoning used to complete calculations.](https://reader036.fdocuments.net/reader036/viewer/2022083006/56649f335503460f94c4f766/html5/thumbnails/3.jpg)
Mental Activity
We are going to practise adding 3one-digit numbers.
Top Tips
Look for pairs that add up to 10.
Look for doubles and near doubles.
![Page 4: Today we will be learning to explain the methods and reasoning used to complete calculations.](https://reader036.fdocuments.net/reader036/viewer/2022083006/56649f335503460f94c4f766/html5/thumbnails/4.jpg)
3 + 5 + 7
8 + 9 + 3
6 + 7 + 5
4 + 8 + 6
9 + 4 + 1
![Page 5: Today we will be learning to explain the methods and reasoning used to complete calculations.](https://reader036.fdocuments.net/reader036/viewer/2022083006/56649f335503460f94c4f766/html5/thumbnails/5.jpg)
5 + 4 + 8
2 + 3 + 8
8 + 8 + 9
6 + 5 + 3
7 + 3 + 7
![Page 6: Today we will be learning to explain the methods and reasoning used to complete calculations.](https://reader036.fdocuments.net/reader036/viewer/2022083006/56649f335503460f94c4f766/html5/thumbnails/6.jpg)
Main Activity
Today we are going to learn to explain methods of calculation.
Here is a calculation to complete.
64 2 = 32
Think about how you worked out the answer before we check to see if you were right.
![Page 7: Today we will be learning to explain the methods and reasoning used to complete calculations.](https://reader036.fdocuments.net/reader036/viewer/2022083006/56649f335503460f94c4f766/html5/thumbnails/7.jpg)
Try these calculations.
28 x 2 = 56
45 + 46 = 91
36 - 21 = 15
What strategies did you use to help you to work out the answers quickly?
![Page 8: Today we will be learning to explain the methods and reasoning used to complete calculations.](https://reader036.fdocuments.net/reader036/viewer/2022083006/56649f335503460f94c4f766/html5/thumbnails/8.jpg)
Can you explain your method of calculation for each of these?
33 + 27 = 60
52 - 19 = 33
36 x 2 = 72
84 2 = 42
7798 - 21 =
![Page 9: Today we will be learning to explain the methods and reasoning used to complete calculations.](https://reader036.fdocuments.net/reader036/viewer/2022083006/56649f335503460f94c4f766/html5/thumbnails/9.jpg)
Group Work
Add 10 then subtract 1 from one-digit and two-digit numbers.
Work out calculations involving three-digit numbers and describe your strategies.
Add 9 and 11 to different numbers. Subtract 7 and 8 from different numbers.