Buzz
Guidance for Solving Exercise 1 on Page 27 Math 5 Workbook
Problem Statement:
Find the average of the following numbers:
a) 42 and 52 b) 36; 42 and 57.
c) 34; 43; 52 and 39 d) 20; 35; 37; 65 and 73
Solution Method:
To calculate the average of multiple numbers:
- Step 1: Find the sum of the sequence by adding all the numbers in the sequence together (mentally for simple numbers or using a calculator for sequences of large, complex numbers)
- Step 2: Calculate the number of terms by counting how many terms are in the given sequence. If the sequence has repeating numbers, they must be counted as well
- Step 3: Find the average by dividing the sum (result from Step 1) by the number of terms (result from Step 2).
Answer:
a) 42 and 52
The sum of two numbers is: 42 + 52 = 94
The average of two numbers is: 94 : 2 = 47.
b) 36; 42 and 57.
The sum of three numbers is: 36 + 42 + 57 = 135
The average of three numbers is: 135 : 3 = 45
c) 34; 43; 52 and 39
The sum of four numbers is: 34 + 43 + 52 + 39 = 168
The average of four numbers is: 168 : 4 = 42
d) 20; 35; 37; 65 and 73
The sum of five numbers is: 20 + 35 + 37 + 65 + 73 = 230
The average of five numbers is: 230 : 5 = 46
Section solution for Exercise 1 Page 27 Math 5 Workbook comprises 3 exercises, after solving Exercise 1 Page 27 Math 5 Workbook, please proceed to view the hints and method for Solving Exercise 2 Page 27 Math 4 Workbook and Solving Exercise 3 Page 27 Math 4 Workbook, to improve your understanding of Grade 5 mathematics.
