Estimating Sum for Large Numbers

Q.

Round off the following to the nearest ten.

$95$

Q.

Estimate the following product :$87\times 313$

Q.

Estimate the sum of 5, 60, 312 and 4, 19, 333 by rounding off each number to its nearest ten thousands.___

Q.

Estimate the following using general rule : $9250\times 29$

Q.

Round off the following numbers to the nearest lakhs.

b) $6,29,636$

Q.

The sum of 267 + 132 to nearest ten is _______.

1. 500

2. 400

3. 200

4. 300

Q.

Alex wants to buy 34 pens and 38 pencils. The cost of each pen is ₹18 and the cost of each pencil is ₹ 13.

Find an estimate for how much this will cost Alex in ₹.

Q.

Estimate the following by rounding off to nearest hundreds :

$874+478$

Q.

Difference of 3596 and 1089 to nearest tens is equal to

1. 2510

2. 1000

3. 2500

4. 2520

Q.

Estimated difference of 7732 and 470 is equal to

1. 7200

2. 7200

3. 7000

4. 7500

Q. Estimate the sum of 97 and 46 to the nearest ten.

1. 145
2. 150
3. 160
4. 143

Q.

A school charges a transportation cost of ₹ 2275 and a camp fee of ₹ 1573. What is the estimated (to nearest hundreds) amount that you have to pay?

1. Rs. 3900
2. Rs. 3800
3. Rs. 3570
4. Rs. 3500

Q. Estimate the sum (489 + 251) correct to nearest hundred.

1. 600
2. 700
3. 800
4. 900

Q.

Round off the following numbers to the nearest lakhs.

a) $44,69,774$

Q.

Round off the following numbers to the nearest lakhs.

c) $54,38,361$

Q.

Sum of 1057 and 2434 can be approximated to its nearest tens as

1. 3410

2. 3500

3. 3490

4. 3300

Q. The difference between the greatest and smallest numbers which when rounded off a number to the nearest tens as 540, is
(a) 10
(b) 9
(c) 8
(d) 10

Q.

Round each number to the nearest hundred.

The estimate the difference

Q. Estimate the product of 85 and 17 correct to the nearest ten.

1. 1600
2. 1700
3. 1350
4. 1800

Q.

Without actual calculation, estimate:

$9945-390$

Q.

estimate: 5, 987-137

Q.

Yuvraj was asked to estimate the sum of 4689 + 19316 to the nearest thousands. What answer he would have got?

Q. A school charges a transportation cost of ₹ 7283 and a camp fee of ₹ 1256 per student. What is the estimated (to nearest hundred) amount that you have to pay (in ₹)?

1. 8600

Q.

Estimate the following product by rounding off each number to nearest tens :

$3239\times 28$

Q. $\mathrm{Megha}\mathrm{added}3\frac{1}{3}\mathrm{cups}\mathrm{of}\mathrm{almond}\mathrm{and}1\frac{1}{3}\mathrm{cups}\mathrm{of}\mathrm{walnut}.\mathrm{Find}\mathrm{the}\mathrm{total}\mathrm{number}\mathrm{of}\mathrm{nuts}\mathrm{she}\mathrm{puts}\mathrm{in}\mathrm{her}\mathrm{recipe}\mathrm{if}\mathrm{each}\mathrm{cup}\mathrm{holds}\mathrm{around}12\mathrm{nuts}.$

Q. The Average monthly income of Hari and Nigazh is Rs. 5050, Nigazh and Jaya is Rs. 6200, Hari and Jaya is Rs. 5000. Find the monthly income of Hari.

1. Rs 3810
2. Rs 3860
3. Rs 3840
4. Rs 3850

Q.

Estimate the sum of 97 and 46 to the nearest ten.

1. 150

2. 143

3. 145

4. 140

Q. Round each of the following numbers to the nearest hundred:
(a) 814
(b) 1254
(c) 43126
(d) 98165

Q.

Estimate the sum of 256 and 321 to the nearest hundred.

1. 570

2. 577

3. 600

4. 580

Q. 348 and 579 when added = and if we round off the answer to the nearest 100, it will be .

1. 927
2. 936
3. 900
4. 1000
5. 950