5/8 Divide by a two digit number Remember the rules: Try different methods to find which suits you When subtracting go down the number line When adding go up the number line e.g. 4928 ÷ 32 BUS SHELTER METHOD 8 + - 2 is the same as 8 – 2 = 6 Divide 8 - + 2 is the same as 8 – 2 = 6 Multiply Subtract 8 - - 2 is the same as 8 + 2 = 10 Bring down - Make a new number Divide ... 5/10 Ratio 0 1 5 4 How it is written 32 4 9 2 8 -3 2 1 7 2 Yellow : Red -1 6 0 = 2 : 6 1 2 8 -1 2 8 How it can be simplified 0 0 0 4928 ÷ 32 = 154 Yellow : Red e.g. 4928 ÷ 32 CHUNKING METHOD = 1 : 3 4 9 2 8 Simplify by cancelling 3 2 0 0 100 X 32 Examples 1 7 2 8 1 6 0 0 50 X 32 2÷2: 6÷2 = 1 : 3 1 2 8 10÷5 : 15÷5 = 2 : 3 1 2 8 4 X 32 4928 ÷ 32 = 154 5/10 Direct proportion e.g. 4928 ÷ 32 SHORT DIVISION e.g.1 METHOD 5 miles is approximately 8km. (Except write down some of your tables down first) How many miles are equal to 24km? 24km ÷ 8km = 3 32 5 miles x 3 = 15 miles 0 1 5 4 64 e.g.2 32 449172 128 96 It takes 90 Lego bricks to build 3 planes 128 How many bricks would be needed for 11? 160 1 plane uses 90 ÷ 3 = 30 bricks 4928 ÷ 32 = 154 11 planes will use 11 x 30 = 330 bricks 5/12&13 Properties of 2D & 3D shapes 5/9 Negative numbers
5/8 Divide by a two digit number Try different methods to find which suits you e.g. 4928 ÷ 32 BUS SHELTER METHOD Divide Multiply Subtract Bring down - Make a new number Divide ... 0 1 5 4 32 4 9 2 8 -3 2 1 7 2 -1 6 0 1 2 8 -1 2 8 0 0 0 4928 ÷ 32 = 154 e.g. 4928 ÷ 32 CHUNKING METHOD 4 9 2 8 3 2 0 0 100 X 32 1 7 2 8 1 6 0 0 50 X 32 1 2 8 1 2 8 4 X 32 4928 ÷ 32 = 154 e.g. 4928 ÷ 32 SHORT DIVISION METHOD (Except write down some of your tables down first) 32 64 0 1 5 4 96 32 449172 128 128 160 4928 ÷ 32 = 154 5/9 Negative numbers Remember the rules: When subtracting go down the number line When adding go up the number line 8 + - 2 is the same as 8 – 2 = 6 8 - + 2 is the same as 8 – 2 = 6 8 - - 2 is the same as 8 + 2 = 10 5/10 Ratio How it is written Yellow : Red = 2 : 6 How it can be simplified Yellow : Red = 1 : 3 Simplify by cancelling Examples 2÷2: 6÷2 = 1 : 3 10÷5 : 15÷5 = 2 : 3 5/10 Direct proportion e.g.1 5 miles is approximately 8km. How many miles are equal to 24km? 24km ÷ 8km = 3 5 miles x 3 = 15 miles e.g.2 It takes 90 Lego bricks to build 3 planes How many bricks would be needed for 11? 1 plane uses 90 ÷ 3 = 30 bricks 11 planes will use 11 x 30 = 330 bricks 5/12&13 Properties of 2D & 3D shapes