Class 4 Exam > Class 4 Videos > Mathematics for Class 4 > Quick Revision: Decimals
Quick Revision: Decimals Video Lecture | Mathematics for Class 4
FAQs on Quick Revision: Decimals Video Lecture - Mathematics for Class 4
| 1. What is a decimal number? |  |
Ans. A decimal number is a number that includes a decimal point to represent parts of a whole number. It separates the whole number part from the fractional part.
| 2. How do you read decimal numbers? | |
Ans. To read a decimal number, say the whole number part first, then say the decimal point, and finally read the decimal part as individual digits. For example, 3.25 is read as "three point two five."
| 3. How can decimals be converted into fractions? | |
Ans. To convert a decimal into a fraction, count the number of decimal places and put the decimal part over a power of 10 with the same number of digits. Simplify the fraction if needed.
| 4. How do you compare decimal numbers? | |
Ans. To compare decimal numbers, start from the left and compare the whole number parts. If they are equal, move to the right and compare the first decimal place. Continue this process until a difference is found.
| 5. How do you add and subtract decimal numbers? | |
Ans. To add or subtract decimal numbers, align the decimal points and then perform the operation as if they were whole numbers. Remember to carry over or borrow when needed and keep the decimal point in the final answer aligned with the original numbers.
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Video Description: Quick Revision: Decimals for Class 4 2025 is part of Mathematics for Class 4 preparation.
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