Learning Outcomes     Calculate the average of up to five numbers                           Total of numbers              ...
Calculate the average of up to five numbers     Example 1 :                        Find the average for the numbers given ...
Solve problems in real contexts involving average  Example 1 :                  Table 1 shows the number of fruits sold by...
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(14)average (pg 108 112)

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(14)average (pg 108 112)

  1. 1. Learning Outcomes Calculate the average of up to five numbers Total of numbers Average = Quantity of numbers2. Solve problems in real contexts involving average
  2. 2. Calculate the average of up to five numbers Example 1 : Find the average for the numbers given 8, 9, 12 and 7 Calculate the total in vertical form Step 1 : 8 9 12 + 7 Divide the 36 answer by 4 Step 2 : Average = Total of numbers Quantity of numbers 36 4 Solve by long division 09 Step 3 : 4 36 0 36 36 0 Write the answer 9
  3. 3. Solve problems in real contexts involving average Example 1 : Table 1 shows the number of fruits sold by Salleh’s shop in five days DaysNumber of FruitsMonday35Tuesday45WednesdayThursday30Frida y40Table 1 The average number of fruits sold in five days is 35 fruits. What is the number of fruits sold on Wednesday?. Understanding Step 1 : the problem 1. Average = 35 fruits. 2. Number of days = 5 3. Total fruits given: 35 + 45 + 30 + 40 = 140 4. Find the number of fruits sold on Wednesday Remember : Total = Average × Quantity of numbers Multiply the Step 1 : Find the total average by the quantity of 35 × 5 days = 175 numbers Substract the Step 2 : multiplication 175 - 140 = 35 answers by the total fruits given. 35 fruits Write the answer

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