5. A rectangular carpet measures 3m by 4.5m Find a)Its area b)The cost of cleaning it at 3.80 per square metre
Same signs (+) Different signs (-) Homework Check: Multiply Same signs (+) Different signs (-) +2 x -3 = x +4 = x +2 = x -3 = x +8 = x +5 = x -4 = x -1 = 6 +7 x -2 = x +8 = x -10 = x +4 = x -2 = 30
Same signs (+) Different signs (-) Homework Check: Divide Same signs (+) Different signs (-) +12 ÷ -3 = ÷ +4 = ÷ +2 = ÷ -3 = ÷ +8 = ÷ +5 = ÷ -4 = 8 -6 ÷ -1 = 6 +7 ÷ -2 = ÷ +6 = ÷ -10 = ÷ +4 = ÷ -2 = 7.5
What you need to know about directed numbers How to add and subtract (using the number line, reasoning it out with debt) How to change two touching signs to one sign How to multiply and divide directed numbers ZATS ALL
Groups of 4 Each group starts with € 50 Each question you must decide your stake (Min € 1, Max € 20) Then answer the question. Get it right, I add your stake to your pot. Get it wrong, you lose your stake.
Group Starting Amount Stake New Amount Stake New Amount Stake Final Amount Winnings A €50 €20 €30 €10 €40 €20 €60€10 B €50 €2 €52 €20 €32 €10 €42-€8
Question 1 Ordering Negative Numbers
1: Ordering Negative Numbers Largest to Smallest
Question 2 Adding Negative Numbers
2: Adding Negative Numbers Find the answer to these sums = ? = ? = ?
Question 3 Multiplying Negative Numbers
3: Multiplying Negative Numbers Find the (?) in this sum. (-4 x -2) x (-3 x -3) x (?) = -144
Question 4 Missing Negative Numbers
4: Missing Negative Numbers Use the cards to complete these sums. Which card is left over? -4 x = 20 9 ÷= = =
Question 5 Negative Number Coordinates
5: Negative Number Coordinates Match the letter with their coordinates. What are the coordinates of the remaining point? (-2, 1) (1, -2) (-1, -1) (-2, -3)
Question 6 Real Life Negative Numbers
6: Real-Life Negative Numbers Find the answer to this sum. GD(Man U) + GD(Spurs) - GD(Aston Villa) = ?
Question 7 Dividing Negative Numbers
7: Dividing Negative Numbers Find the (?) in this sum. (-40 ÷ 2) ÷ (-8 ÷ -2) ÷ (-5) = (?)
Question 8 Negative Number Magic Square
8: Negative Numbers Magic Square Find the (?) in this magic square. Remember: In a magic square you get the same number when you add up the numbers in each of the rows, in each of the columns and in each diagonal.
Question 9 Negative Number Pyramid
9: Negative Numbers Pyramid Find the (?) in this addition pyramid. Remember: To find each brick add the two bricks directly below it
Question 10 Subtracting Negative Numbers
10: Subtracting Negative Numbers Find the (?) in this sum = (?)