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Numeracy Information Evening

Numeracy Information Evening. Calculation Methods - Years 5 and 6. Addition methods Year 5 and 6. 612 + 75 600 + 80 + 7 612 or 612 + 75 + 75

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Numeracy Information Evening

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  1. Numeracy Information Evening Calculation Methods - Years 5 and 6

  2. Addition methods Year 5 and 6 612 + 75 600 + 80 + 7 612 or 612 + 75 + 75 600 687 80 7 687

  3. Vertical or Column Addition Year 5 and 6 6845 + 5758 6845 6845 + 5758 +5758 11000 or 1500 12,603 90 13 12,603

  4. Subtraction methods Year 5 and 6 6872 – 491Round the numbers and estimate 6900 – 500 = 6400 4734 - 497 • 4700 – 500 = 4200 • Th H T U • 4734 • 497 • 37 • 6872 • 491 • 6381 Th H T U 4734 - 497 4237 6 12 2 7 Our estimate was 4200 close to the right answer! That’s great.

  5. Multiplication methods Year 5 and 6 Grid Method Firstly, round the numbers and estimate. 400 x 400 = 160000 355 x 422 Finally, add up the results 120000 20000 6000 2000 1000 600 100 100 + 10 149810 Partition the numbers and draw the grid. 300 50 5 400 20000 2000 120000 1000 100 20 6000 2 600 100 10

  6. Multiplication methods Year 5 and 6 Standard Method Round the numbers and estimate: 50 x 60 = 3000 46 x 63 Set out calculation in column format: 46 x 63 1 3 2760 138 2898

  7. Division methods Year 5 and 6 Standard method of division Solve the problem as shown below: 8) 384 4 8 6

  8. Division methods Year 5 and 6 Long division methods 1 x 18 = 18 2 x 18 = 36 3 x 18 = 54 4 x 18 = 72 5 x 18 = 90 6 x 18 = 108 7 x 18 = 126 8 x 18 = 144 9 x 18 = 162 10 x 18 = 180 Solve the problem as shown below: 18) 1206 6 7 108 12 6

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