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Supporting Your Child in Maths

Supporting Your Child in Maths. Calculation Methods. Methods of Addition. +10. +2. 34. 36. 24. +40. +7. 76. 116. 123. Children need to know their number bonds to 10 and 20. Always start with the larger number first. 24 + 12 = 36.

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Supporting Your Child in Maths

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  1. Supporting Your Child in Maths Calculation Methods

  2. Methods of Addition +10 +2 34 36 24 +40 +7 76 116 123 • Children need to know their number bonds to 10 and 20. • Always start with the larger number first 24 + 12 = 36 • Then progress onto recording with partitioning: • 76 + 47 = 76 + 40 + 7 • = 116 + 7 • = 123

  3. Methods of Addition (continued…) 47 +76 123 1 47 +76 13 (7+6) 110(40+70) 123 • + 70 = 110 • 7 + 6 = 13 • 123 166 +129 295 1 or 40 + 7 70 + 6 110 + 13 • An example using larger numbers e.g. 166 + 129 166 + 129 15 (9+6) 80 (60 + 20) 200 (100 + 100) 295

  4. Methods of Subtraction +10 +8 +1 29 30 40 48 • Children will then continue this method, but without the help of the number line and using larger numbers e.g. 783-356 • 356 360 = + 4 • 360 400 = + 40 • 400 700 = + 300 • 700 783 = + 83 • 427 • Again, children need to know their number bonds to 10 and 20! • Next step is to use number lines to COUNT UP eg 48 - 29

  5. Methods of Subtraction……..(continued) • The next step is to begin recording vertically, using partitioning e.g. 81 – 57 = • 81 = 80 + 1 = 70 + 11 • - 57 = 50 + 7 = 50 + 7 • 20 + 4 = 24 • This then leads to the standard written method and will involve larger numbers . • 81 754 • - 57 - 236 • 24 518 7 4 1

  6. Multiplication – Grid Method 47 x 8 = x 40 7 8 320 56 376 Estimating very important e.g. 50 x 8 = 400 37 x 46 = x 30 7 40 1200 280 1480 6 180 42 222 1702

  7. Multiplying Decimals 4.7 x 8 = 37.6 x 40 7 1dp8 320 56 37.6 Estimating very important e.g. 5 x 8 = 40 3.7 x 4.6 = 17.02 2dp x 30 7 40 1200 280 1480 6 180 42 222 17.02

  8. This then leads to the short method

  9. First using partitioning 84 ÷ 7 = First we partition the 84 into a convenient multiple of 7 + the rest 84 70 + 14 10 + 2 = 12

  10. This is probably the method that children struggle most with. This method as with multiplication enables pupils to understand how the numbers work together.

  11. 8 271 176.5  7 7 176.5 Short Division 033 r7 3 271  8 025.2 3 1

  12. Your turn to explore! Visit as many tables to see how the written methods work and used throughout school Feel free to ask children questions

  13. Questions?If you have any questions we will do our best to answer them.

  14. How to help at home… • Parents can help by: • Assisting with homework; • Playing maths games, such as snakes and ladders, Connect 4, Guess Who, Monopoly or pairs. • Playing on maths websites with them. • Allowing children to pay in shops, weigh out fruit when shopping, or bake cakes at home. • Practical experiences and fun activities remain the best ways for children to learn maths.

  15. A big “Thank you” for attending All posters and booklets shared today will be available to download from the school’s website: http://www.northfieldhouse.leicester.sch.uk under curriculum maths section parent booklets

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