For week 1 and 2 you will be reviewing your addition and subtraction strategies.
When you feel confident with your strategy, move onto the next strategy.
Follow the following method:
[1] Watch the video of the strategy --> as often as you need
[2] Take a GUIDE SHEET - read it and go through the examples
* watch the video again if you need to
* check your answers against the answer sheet to see how you are going
* go to an expert for that strategy - they can give you a hand
[3] Take a WORKSHEET
* Do this in your maths exercise book
* Write the short date
* Write the WALT
* show your working out
* Remember that ONE number or mark per box
See the EXAMPLE LAYOUT display to see the expected standard
Addition and Subtraction strategy review guidesheet
Strategy 1
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54 + 18 = 52 + 20 = 72
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Plus one side, minus the other side
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Strategy 2
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394 + 79 = 393 + 80 = 473
Or 400 + 73 = 473
Step up
|
Plus one side, minus the other side
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Strategy 3
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56 - 37 = 59 - 40 = 19
|
If you add to one side, you add to the other side.
If you minus one side, you minus the other side
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Strategy 4
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345 - 98 = 347 - 100 - 247
Or 350 - 103 = 247
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If you add to one side, you add to the other side.
If you minus one side, you minus the other side
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Strategy 5
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1
347
- 218
------
565
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Standard written form for addition
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Strategy 6
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763
- 148
--------
615
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Standard written form for subtraction
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Strategy 7
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3.6 + 2.5 = 6.1
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Adding decimals
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Strategy 8
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6.4 - 2.2 = 4.2
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Subtracting decimals
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