What number is obtained by adding (0.01) to (9.99)?
Answer and explanation
Correct answer: 10.00
The correct sum is \(9.99+0.01=10.00\). Here, 9 hundredths plus 1 hundredth makes 10 hundredths, producing a carry of 1 and giving 10. Option \(9.991\) is incorrect because adding \(0.01\) does not add a digit in the thousandths place. Exam tip: While adding decimals, align the decimal points so that digits with the same place value are added together.
Frequently asked questions
What is the correct answer to this question?
10.00
Why is this the correct answer?
The correct sum is \(9.99+0.01=10.00\). Here, 9 hundredths plus 1 hundredth makes 10 hundredths, producing a carry of 1 and giving 10. Option \(9.991\) is incorrect because adding \(0.01\) does not add a digit in the thousandths place. Exam tip: While adding decimals, align the decimal points so that digits with the same place value are added together.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Number Systems. Topic: Decimal representation.
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