lo: to add/subtract any pair of two-digit numbers, including crossing 100. 28.06.05

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LO: To add/subtract any pair of two-digit numbers, including crossing 100. 28.06. 05

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Page 1: LO: To add/subtract any pair of two-digit numbers, including crossing 100. 28.06.05

LO: To add/subtract any pair of two-digit numbers,

including crossing 100.

28.06.05

Page 2: LO: To add/subtract any pair of two-digit numbers, including crossing 100. 28.06.05

What is 54 add 37?

Page 3: LO: To add/subtract any pair of two-digit numbers, including crossing 100. 28.06.05

What is the sum of 43 and 66?

Page 4: LO: To add/subtract any pair of two-digit numbers, including crossing 100. 28.06.05

What is 76 subtract34?

Page 5: LO: To add/subtract any pair of two-digit numbers, including crossing 100. 28.06.05

What is the difference

between 85 and 58?

Page 6: LO: To add/subtract any pair of two-digit numbers, including crossing 100. 28.06.05

How much more is 97than 45?

Page 7: LO: To add/subtract any pair of two-digit numbers, including crossing 100. 28.06.05

What is the total of 67 and 82? etc.

Page 8: LO: To add/subtract any pair of two-digit numbers, including crossing 100. 28.06.05

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

Page 9: LO: To add/subtract any pair of two-digit numbers, including crossing 100. 28.06.05

LO: Extend written methodsto column addition of

integers less than 10 000.

28.06.05

Page 10: LO: To add/subtract any pair of two-digit numbers, including crossing 100. 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?

Page 11: LO: To add/subtract any pair of two-digit numbers, including crossing 100. 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 will the answer be approximately? How

can we work out the answer?

Page 12: LO: To add/subtract any pair of two-digit numbers, including crossing 100. 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?

Page 13: LO: To add/subtract any pair of two-digit numbers, including crossing 100. 28.06.05

£4764 + £3457

Page 14: LO: To add/subtract any pair of two-digit numbers, including crossing 100. 28.06.05

£4764 + £3457 Q How many thousands will there be?

Page 15: LO: To add/subtract any pair of two-digit numbers, including crossing 100. 28.06.05

£4764 + £3457 Q How many hundreds will there be?

Page 16: LO: To add/subtract any pair of two-digit numbers, including crossing 100. 28.06.05

£4764 + £3457 Q How many tens will there be?

Page 17: LO: To add/subtract any pair of two-digit numbers, including crossing 100. 28.06.05

£4764 + £3457 Q How many units will there be?

Page 18: LO: To add/subtract any pair of two-digit numbers, including crossing 100. 28.06.05

1234

59341673

5632

1208

3794

50466240

1982

6207

1008

Page 19: LO: To add/subtract any pair of two-digit numbers, including crossing 100. 28.06.05

What have we learned?

Q. What has been done differently?

Page 20: LO: To add/subtract any pair of two-digit numbers, including crossing 100. 28.06.05

Task: Work through the following addition, adding the

least significant digit first.

£4764 + £3457

Page 21: LO: To add/subtract any pair of two-digit numbers, including crossing 100. 28.06.05

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.