If a toy costs Rs. 25.75 and I have Rs. 50, how much money do I have left after buying the toy?
Solution: To find out how much money you will have left, we need to subtract the cost of the toy from the amount you have.
Rs. 50 - Rs. 25.75 = Rs. 24.25
Therefore, you will have Rs. 24.25 left after buying the toy.
Decimals class 5 important questions with solution
Q1: What is the value of 3.6 + 1.2?
3.6 + 1.2 = 4.8
Q2: What is the value of 8.5 - 2.3?
8.5 - 2.3 = 6.2
Q3: What is the product of 5.7 and 2.5?
5.7 x 2.5 = 14.25
Q4: What is the quotient of 9.6 divided by 2?
9.6 ÷ 2 = 4.8
Q5: If I have Rs. 250 and I want to buy 10 books at Rs. 21.50 each, how much money will I have left?
The cost of 10 books is: 10 x 21.50 = Rs. 215.00
Money left after buying 10 books = Rs. 250 - Rs. 215.00 = Rs. 35.00
Q6: If a piece of cloth is 2.75 meters long and I cut off a piece that is 1.25 meters long, how much cloth is left?
The length of the piece of cloth left = 2.75 - 1.25 = 1.50 meters.
Q7: If I have Rs. 120 and I want to buy 5 pens and 3 pencils, where each pen costs Rs. 15.50 and each pencil costs Rs. 5.25, how much money will I have left?
The cost of 5 pens is: 5 x Rs. 15.50 = Rs. 77.50
The cost of 3 pencils is: 3 x Rs. 5.25 = Rs. 15.75
Total cost of 5 pens and 3 pencils = Rs. 77.50 + Rs. 15.75 = Rs. 93.25
Money left after buying 5 pens and 3 pencils = Rs. 120 - Rs. 93.25 = Rs. 26.75
Q8: If I have a rectangle with a length of 4.3 cm and a width of 2.5 cm, what is the area of the rectangle?
Area of rectangle = length x width
Area of rectangle = 4.3 cm x 2.5 cm = 10.75 cm²
Q1: What is a decimal number?
A decimal number is a number that includes a decimal point. It can be a whole number with a decimal point or a fraction that is written in decimal form.
Q2: What is the place value of the digit 7 in the number 0.73?
The place value of the digit 7 in 0.73 is hundredths or 0.01.
Q3: How do you compare decimal numbers?
To compare decimal numbers, we first compare the whole number parts, and if they are the same, we compare the decimal parts. We start from the leftmost digit of the decimal part and compare the digits one by one until we find a difference.
Q4: How do you add decimal numbers?
To add decimal numbers, we need to align the decimal points and add the digits in each place value column, starting from the rightmost column. If there is a carry-over, we add it to the next column.
Q5: How do you subtract decimal numbers?
To subtract decimal numbers, we need to align the decimal points and subtract the digits in each place value column, starting from the rightmost column. If we need to borrow, we borrow from the next higher place value column.
Q6: How do you multiply decimal numbers?
To multiply decimal numbers, we can ignore the decimal point and multiply the numbers as if they were whole numbers. Then, we count the total number of decimal places in the factors and place the decimal point in the product that many places from the right end.
Q7: How do you divide decimal numbers?
To divide decimal numbers, we can move the decimal point in the divisor and dividend to make the divisor a whole number. Then, we can divide the numbers as if they were whole numbers. Finally, we count the total number of decimal places in the dividend and place the decimal point in the quotient that many places from the right end.
Q8: What are some real-life examples of decimals?
Some real-life examples of decimals include money amounts, measurements (such as length, weight, and volume), and scores or grades (such as GPA or batting averages in baseball).