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LO: To add/subtract any pair of two-digit numbers, including crossing 100.PowerPoint Presentation

LO: To add/subtract any pair of two-digit numbers, including crossing 100.

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LO: To add/subtract any pair of two-digit numbers, including crossing 100.

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LO: To add/subtract any pair of two-digit numbers, including crossing 100.

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LO: To add/subtract any pair of two-digit numbers,including crossing 100.

28.06.05

What is 54 add 37?

What is the sum of 43 and 66?

What is 76 subtract34?

What is the differencebetween 85 and 58?

How much more is 97than 45?

What is the total of 67 and 82? etc.

Q What pairs of numbers can you see with a total of 100?

LO: Extend written methodsto column addition ofintegers less than 10 000.

28.06.05

I have £7587 in my savings account. I get five numbers in the National Lotto game and win£5675. How much money do I have now?

Q What calculation do we need to carry out in order to answer this question?

I have £7587 in my savings account. I get five numbers in the National Lotto game and win£5675. How much money do I have now?

Q What will the answer be approximately? How can we work out the answer?

I have £7587 in my savings account. I get five numbers in the National Lotto game and win £5675. How much money do I have now?

£4764 + £3457

Q How many thousands will there be?

£4764 + £3457

Q How many hundreds will there be?

£4764 + £3457

Q How many tens will there be?

£4764 + £3457

Q How many units will there be?

£4764 + £3457

1234

1008

1982

5934

1673

5632

6207

3794

1208

6240

5046

What have we learned?

Q. What has been done differently?

Task: Work through the following addition, adding the least significant digit first.

£4764 + £3457

Well Done!!

You can:

Use written column methods for the addition of two or more integers less than 10 000;

• Know that units should line up under units, and so on.