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A TV costs £225. Sally has saved £87. How much more does she need to save to buy the TV?

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Hello, Im Helpful Bear and Im going to be helping you through this number problem.

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_______________________ A TV costs £225. Sally has saved £87. How much more does she need to save to buy the TV? This is a subtraction sum! £225 - £87 =

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_______________________ A TV costs £225. Sally has saved £87. How much more does she need to save to buy the TV? £225£87 Firstly, put the numbers you are going to use on the number line

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_______________________ A TV costs £225. Sally has saved £87. How much more does she need to save to buy the TV? £225£87£90 +3 Then count up to the next easy number

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_______________________ A TV costs £225. Sally has saved £87. How much more does she need to save to buy the TV? £225£87£90 +3+10 £100 …..and again……

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_______________________ A TV costs £225. Sally has saved £87. How much more does she need to save to buy the TV? £225£87£90 +3+10 £100 +100 £200 …youre doing well, keep going…..

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_______________________ A TV costs £225. Sally has saved £87. How much more does she need to save to buy the TV? £225£87£90 +3+10 £100 +100 £200 +20 £220 ….nearly there

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_______________________ A TV costs £225. Sally has saved £87. How much more does she need to save to buy the TV? £225£87£90 +3+10 £100 +100 £200 +20 £220 +5 …last one….!

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_______________________ A TV costs £225. Sally has saved £87. How much more does she need to save to buy the TV? £225£87£90 +3+10 £100 +100 £200 +20 £220 +5 Excellent – but are we finished? What else do we need to do?

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_______________________ A TV costs £225. Sally has saved £87. How much more does she need to save to buy the TV? £225£87£90 +3+10 £100 +100 £200 +20 £220 +5 3+10+100+20+5= (Tell you what….lets make it even easier…….

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_______________________ A TV costs £225. Sally has saved £87. How much more does she need to save to buy the TV? £225£87£90 +3+10 £100 +100 £200 +20 £220 +5 100+20+10+5+3 =

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_______________________ A TV costs £225. Sally has saved £87. How much more does she need to save to buy the TV? £225£87£90 +3+10 £100 +100 £200 +20 £220 +5 100+20+10+5+3 = 138

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_______________________ A TV costs £225. Sally has saved £87. How much more does she need to save to buy the TV? £225£87£90 +3+10 £100 +100 £200 +20 £220 +5 So, to recap: To find the difference by counting on we first add units to the nearest ten.

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_______________________ A TV costs £225. Sally has saved £87. How much more does she need to save to buy the TV? £225£87£90 +3+10 £100 +100 £200 +20 £220 +5 Then, we count on in tens to the nearest hundred.

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_______________________ A TV costs £225. Sally has saved £87. How much more does she need to save to buy the TV? £225£87£90 +3+10 £100 +100 £200 +20 £220 +5 Then we count on in hundreds to the nearest hundred below our target number.

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_______________________ A TV costs £225. Sally has saved £87. How much more does she need to save to buy the TV? £225£87£90 +3+10 £100 +100 £200 +20 £220 +5 We count again in tens to the nearest ten below our target number.

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_______________________ A TV costs £225. Sally has saved £87. How much more does she need to save to buy the TV? £225£87£90 +3+10 £100 +100 £200 +20 £220 +5 …and finally, we count on in units to our target number.

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_______________________ A TV costs £225. Sally has saved £87. How much more does she need to save to buy the TV? £225£87£90 +3+10 £100 +100 £200 +20 £220 +5 Now we total up the amounts we have counted on to give us the difference between the initial two numbers

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WELL DONE! Youve worked and listened well. Now see if you can try the next problem your teacher sets you (in your pairs) Good Luck!

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Don’t Subtract Add I am learning that problems like 34 + ? = 51 and 51 – 34 = ? have the same answer. e.g. 34 + 17 = 51 and 51 – 34 = 17.

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