Serah is participating in a math quiz. She attempted 5 of the 10 questions. How many more questions are there?
5
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Solution
The correct option is A 5 There are a total of 10 questions in the quiz, 5 of which have already been attempted.
To calculate number of questions that have been left out, find ⇒10−5
Using number line,
First, move by 10 units from 0. Then go backwards by 5 units to deduct.
Hence, the answer is 5.