139
Question
What should be the smallest number added to the sum of 46 and 158 so that the result is divisible by 5? [2 Marks]
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Solution
Sum of 56 and 158 is 56 + 158 = 204. [1 Mark]
A number is divisible by 5 if its ones digit is either 0 or 5.
The ones digit of 204 is 4.
The nearest number to 204 that is divisible by 5 is 205.
Therefore, 1 should be added to 214 as 204 + 1 = 205.
[1 Mark]
A number is divisible by 5 if its ones digit is either 0 or 5.
The ones digit of 204 is 4.
The nearest number to 204 that is divisible by 5 is 205.
Therefore, 1 should be added to 214 as 204 + 1 = 205.
[1 Mark]
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