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FAQs on Visual Worksheet: Decimals - Maths Olympiad Class 6

1. What are decimals and how are they different from whole numbers?
Ans.Decimals are numbers that represent a fraction of a whole, expressed using a decimal point. They differ from whole numbers, which are complete units without any fractional part. For example, 0.5 is a decimal, while 5 is a whole number.
2. How do you add and subtract decimal numbers?
Ans.To add or subtract decimal numbers, align the decimal points vertically and perform the operation as you would with whole numbers. If necessary, add zeros to make the numbers the same length. For example, to add 2.3 and 1.45, you would write it as: 2.30 + 1.45 ------ 3.75
3. Can you explain how to multiply decimal numbers?
Ans.To multiply decimal numbers, first multiply them as if they were whole numbers. Then, count the total number of decimal places in the numbers you multiplied. Place the decimal point in the result so that it has the same number of decimal places. For example, for 0.6 × 0.2, you would calculate 6 × 2 = 12, and since there are two decimal places total (one from each number), the answer is 0.12.
4. What is the process for dividing decimal numbers?
Ans.Dividing decimal numbers involves making the divisor a whole number by moving the decimal point to the right. You must also move the decimal point in the dividend the same number of places. Then, perform the division as usual. For example, to divide 4.5 by 1.5, you can convert it to 45 ÷ 15 = 3.
5. How can I convert fractions to decimals?
Ans.To convert a fraction to a decimal, divide the numerator (the top number) by the denominator (the bottom number). For example, to convert 3/4 to a decimal, you divide 3 by 4, which equals 0.75.
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