L.O: To develop a better understanding of negative numbers

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Presentation transcript:

L.O: To develop a better understanding of negative numbers Directed Numbers L.O: To develop a better understanding of negative numbers SKILLS REQUIRED Number Lines, Arithmetic, Teamwork STARTER This is a magic square. All rows, columns and diagonal lines add up to 3 (e.g. -2 + 1 + 4 = 3) Copy and complete the magic square in your books KEY WORDS: Statement, Negative, Double negative

What about when the signs are together? 4 - - 3 For example, -6 - + 5 -2 + (- 5) 9 + + 1 4 + - 4 8 - - 2 (-5) - + 1 4 + (-3) 7 + + 3 3 - - 9

+ 8 - - 6 = 14 Look at the signs in the middle, if they are the same, then replace them with +

- 8 + - 6 = 2 Look at the signs in the middle, if they are different, then replace them with -

16 - - 4 = 4 + - 4 = 20 47 + - 4 = 122 - - 4 = 43 126

2 mins 3 mins 1 min 10 mins 9 mins 4 mins 6 mins 7 mins 5 mins 8 mins Level 5

Always True Sometimes True Never True

Extension task 1) - ? + ? = 6 Can you give three examples of a positive and a negative number that add up to 6? 2) - ? + ? = -5 Can you give three examples of a positive and a negative number that add up to -5?