![Page 1: Addition and subtraction on a number line links between the model and appropriate ‘vertical’ method Janine Blinko](https://reader035.vdocuments.mx/reader035/viewer/2022062417/551bc51a550346c3588b4ce4/html5/thumbnails/1.jpg)
Addition and subtraction on a number line links between the model and
appropriate ‘vertical’ method
Janine Blinko
![Page 2: Addition and subtraction on a number line links between the model and appropriate ‘vertical’ method Janine Blinko](https://reader035.vdocuments.mx/reader035/viewer/2022062417/551bc51a550346c3588b4ce4/html5/thumbnails/2.jpg)
421-273
![Page 3: Addition and subtraction on a number line links between the model and appropriate ‘vertical’ method Janine Blinko](https://reader035.vdocuments.mx/reader035/viewer/2022062417/551bc51a550346c3588b4ce4/html5/thumbnails/3.jpg)
421-273
421
-200
221
In which case they need to be fluent in subtracting multiples of 100 from any number……
Equivalent written recording-formal version
421-273221 -200
![Page 4: Addition and subtraction on a number line links between the model and appropriate ‘vertical’ method Janine Blinko](https://reader035.vdocuments.mx/reader035/viewer/2022062417/551bc51a550346c3588b4ce4/html5/thumbnails/4.jpg)
421-273
and fluent in subtracting multiples of 10 from any number including crossing the hundreds boundaries……
Equivalent written recording-formal version
421-273221 -200151 -70
421
-200
221
-70
151
![Page 5: Addition and subtraction on a number line links between the model and appropriate ‘vertical’ method Janine Blinko](https://reader035.vdocuments.mx/reader035/viewer/2022062417/551bc51a550346c3588b4ce4/html5/thumbnails/5.jpg)
421-273
-3
148 421
-200
221
-70
151
Equivalent written recording-formal version
421-273221 -200222 -70148 -3
![Page 6: Addition and subtraction on a number line links between the model and appropriate ‘vertical’ method Janine Blinko](https://reader035.vdocuments.mx/reader035/viewer/2022062417/551bc51a550346c3588b4ce4/html5/thumbnails/6.jpg)
91-68
+2
68 91
+1
23
+20
70 90
![Page 7: Addition and subtraction on a number line links between the model and appropriate ‘vertical’ method Janine Blinko](https://reader035.vdocuments.mx/reader035/viewer/2022062417/551bc51a550346c3588b4ce4/html5/thumbnails/7.jpg)
It is 11.25. My cake will be ready at 1.15. How long do I have to wait before it is ready?
+5 mins
11.25 1.15
+1 hour
1hour 55 minutes
+30 mins
11.30
+15 mins
1.0012.00
![Page 8: Addition and subtraction on a number line links between the model and appropriate ‘vertical’ method Janine Blinko](https://reader035.vdocuments.mx/reader035/viewer/2022062417/551bc51a550346c3588b4ce4/html5/thumbnails/8.jpg)
421-273
+7
273 421
+100
148
+20
280
+21
400300
Equivalent written recording-formal version
421-273 7 280 20 300100 400 21 421148
![Page 9: Addition and subtraction on a number line links between the model and appropriate ‘vertical’ method Janine Blinko](https://reader035.vdocuments.mx/reader035/viewer/2022062417/551bc51a550346c3588b4ce4/html5/thumbnails/9.jpg)
421-273
-3
148421
-200
221
-70
151
Equivalent written recording-formal version
421-273221 -200222 -70148 -3
![Page 10: Addition and subtraction on a number line links between the model and appropriate ‘vertical’ method Janine Blinko](https://reader035.vdocuments.mx/reader035/viewer/2022062417/551bc51a550346c3588b4ce4/html5/thumbnails/10.jpg)
421-273
-3
148 421
-200
221
-70
151
Equivalent written recording-formal version
421-273221 -200222 -70148 -3
![Page 11: Addition and subtraction on a number line links between the model and appropriate ‘vertical’ method Janine Blinko](https://reader035.vdocuments.mx/reader035/viewer/2022062417/551bc51a550346c3588b4ce4/html5/thumbnails/11.jpg)
148+273
![Page 12: Addition and subtraction on a number line links between the model and appropriate ‘vertical’ method Janine Blinko](https://reader035.vdocuments.mx/reader035/viewer/2022062417/551bc51a550346c3588b4ce4/html5/thumbnails/12.jpg)
148+273
148
+200
348
In which case they need to be fluent in adding multiples of 100 to any number……
Equivalent written recording-formal version
148+273348 +200
![Page 13: Addition and subtraction on a number line links between the model and appropriate ‘vertical’ method Janine Blinko](https://reader035.vdocuments.mx/reader035/viewer/2022062417/551bc51a550346c3588b4ce4/html5/thumbnails/13.jpg)
148+273
148
+200
348
and fluent in adding multiples of 10 to any number including crossing the hundreds boundaries……
+70
418
Equivalent written recording-formal version
148+273348 +200418 +70
![Page 14: Addition and subtraction on a number line links between the model and appropriate ‘vertical’ method Janine Blinko](https://reader035.vdocuments.mx/reader035/viewer/2022062417/551bc51a550346c3588b4ce4/html5/thumbnails/14.jpg)
148+273
148
+200
348
+70
418
+3
421
Equivalent written recording-formal version
148+273348 (+200)418 (+70)421 (+3)