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Number and algebra Shape, space and measures Handling data.

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Presentation on theme: "Number and algebra Shape, space and measures Handling data."— Presentation transcript:

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2 Number and algebra Shape, space and measures Handling data

3 9 0 Place Value 96 1 0 0 7 04 174 7 049 066

4 Addition 77 + 65 = 77 +10 +5 8797107117127137142 2 1 7 + 6 5 2 0 0 7 0 1 2 + 2 8 2 Calculating:

5 Subtraction 176 – 93 = 176 -10 -3 166156146 136126116 106 9686 83

6 Subtraction 176 – 93 = 176 - 70-20-3 1068683 H T U 2 7 6 - 4 3 3 3

7 Subtraction– using decomposition 7 6 5 5 7 3 - 2 6 1 91 6 0 3 3 1 5 - 5 1 9 1 882

8 Only need tables up to 10x 1 x 6 2 x 6 3 x 6 1 x 60 2 x 60 3 x 60 1 x 600 2 x 600 3 x 600 1 x 0.6 2 x 0.6 3 x 0.6 1 x 0.06 2 x 0.06 3 x 0.06

9 1 x 12 = 2 x 12 = 3 x 12 = 4 x 12 = 5 x 12 = 6 x 12 = 7 x 12 = 8 x 12 = 9 x 12 = 10 x 12 = 11 x 12 = 12 x 12 = 13 x 12 = 14 x 12 = 15 x 12 = 16 x 12 = 12 24 36 48 60 72 84 96 108 120 132 144 156 168 180 192

10 Multiplication- partitioning 25 x 16 = (25 x 10) + (25 x 6) = 250 + 150 = 135 x 8 = (100 x 8) + (30 x 8) + (5 x 8) = 800 + 240 + 40 =1 080 400

11 The Grid Method 125 x 8 = x 100 20 5 8 800 160 40 800 160 +40 1 000

12 28 x 17 = x107 20200140 88056 340 +136 476

13 Division The Bus Stop Method 54 5 5 4 091 455 ÷ 5

14 Long Division‘Chunking’ 10x = 160 16 5 1 0 -1 6 0 3 5 0 -1 6 0 1 9 0 ( 10x ) - 1 6 0 3 0 ( 10x ) -1 6 ( 1x ) 1 4 3 1R 14 4 1 21

15 6 6 313 10x = 130 20x = 260 40x = 520 ( 40x ) - 5 2 0 1 4 3 - 1 3 0 ( 10x ) 1 3 ( 1x )-1 3 0 5 1

16 Fractions Which is bigger? ½ ¾

17 Which is bigger? 1 3 3 8 24 24 x8 x3 8 < 9

18 Percentages What is 20% of 60? 1% = 0.6 5% = 3 10% = 6 20% = 12 40% = 24 50% = 30 100% = 60 What is 45% of 60? What is 56% of 60? What is 115% of 60? 12 27 33.6 69

19 Algebra 2n = 18 2 x = 18 n = 9 2n + 4 = 18 2 x = 18 – 4 2 x = 14 n = 7


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