Estimating products of numbers

Q.

A shopkeeper gives a discount of ₹ $12.50$ on an article that costs $₹50$ What is the selling price of the article?
(Round off the selling price of 11 articles to the nearest 10's).

1. Selling Price $=₹37.5$, Round off value of the articles = $₹412.5$
2. Selling Price $=₹37.5$, Round off value of the articles $=₹410$
3. Selling Price $=₹37.5$, Round off value of the articles $=₹420$
4. Selling Price $=₹37.5$, Round off value of the articles $=₹412$

Q. Estimate the product of 958 and 387 by rounding off each factor to its greatest place.

1. 350000
2. 34000
3. 45000
4. 400000

Q. There are 56 students in the class. If each student has 6 books, total number of books in the class will be

1. 245
2. 336
3. 124

Q.

If Pavan went to a market and bought 4 kg potato for Rs 20 per kg and 5 kg onion for Rs 40 per kg, then the total money spent by him is Rs.__

Q. Estimate the product of 42 and 37.

1. 5000
2. 1600
3. 3000
4. 1400

Q. Find the estimated product of 67 × 62 by rounding off.

1. 4200
2. 3200
3. 4400
4. 6700

Q.

Estimate the quotient of $38512÷815$ by rounding off to greatest place