Estimate the sum of each pair of numbers to the nearest hundred :(i) 3

1.	Estimate the sum of each pair of numbers to the nearest hundred :(i) 336 and 782(ii) 546 and 342(iii) 270 and 495(iv) 4280 and 5295(v) 4230 and 2410(vi) 30047 and 39287
Answer» (i) 336 and 782 336 to the nearest hundred = 300 and, 782 to the nearest hundred = 800 ∴ Required sum = (300 + 800) = 1100 (ii) 546 and 342 546 to the nearest hundred = 500 and 342 to the nearest hundred = 300 ∴ Required sum = (500 + 300) = 800 (iii) 270 and 495 270 to the nearest hundred = 300 and, 495 to the nearest hundred = 500 ∴ Required sum = (300 + 500) = 800 (iv) 4280 and 5295 4280 to the nearest hundred = 4300 and, 5295 to the nearest hundred = 5300 ∴ Required sum = (4300 + 5300) = 9600 (v) 4230 and 2410 4230 to the nearest hundred = 4200 and, 2410 to the nearest hundred = 2400 ∴ Required number = (4200 + 2400) = 6600 (vi) 30047 and 39287 30047 to the nearest hundred = 30000 and, 39287 to the nearest hundred = 39300 ∴ Required sum = (30000 + 39300) = 69, 300

Estimate the sum of each pair of numbers to the nearest hundred :(i) 336 and 782(ii) 546 and 342(iii) 270 and 495(iv) 4280 and 5295(v) 4230 and 2410(vi) 30047 and 39287

Answer»

(i) 336 and 782

336 to the nearest hundred = 300 and, 782 to the nearest hundred = 800

∴ Required sum = (300 + 800) = 1100

(ii) 546 and 342

546 to the nearest hundred = 500 and 342 to the nearest hundred = 300

∴ Required sum = (500 + 300) = 800

(iii) 270 and 495

270 to the nearest hundred = 300 and, 495 to the nearest hundred = 500

∴ Required sum = (300 + 500) = 800

(iv) 4280 and 5295

4280 to the nearest hundred = 4300 and, 5295 to the nearest hundred = 5300

∴ Required sum = (4300 + 5300) = 9600

(v) 4230 and 2410

4230 to the nearest hundred = 4200 and, 2410 to the nearest hundred = 2400

∴ Required number = (4200 + 2400) = 6600

(vi) 30047 and 39287

30047 to the nearest hundred = 30000 and, 39287 to the nearest hundred = 39300

∴ Required sum = (30000 + 39300) = 69, 300