Find the approximate sum to the nearest hundred :

(i) (347 + 476)

(ii) (654 + 247)

(iii) (5,240 + 3,421)

(iv) (9,483 + 6,572)

(i) (347 + 476)

Round 347 to the nearest hundred: The tens digit is 4, so it rounds down to 300.

Round 476 to the nearest hundred: The tens digit is 7, so it rounds up to 500.

Approximate sum: 300 + 500 = 800

Hence, the approximate sum = 800.

(ii) (654 + 247)

Round 654 to the nearest hundred: The tens digit is 5, so it rounds up to 700.

Round 247 to the nearest hundred: The tens digit is 4, so it rounds down to 200.

Approximate sum: 700 + 200 = 900

Hence, the approximate sum = 900.

(iii) (5,240 + 3,421)

Round 5,240 to the nearest hundred: The tens digit is 4, so it rounds down to 5,200.

Round 3,421 to the nearest hundred: The tens digit is 2, so it rounds down to 3,400.

Approximate sum: 5,200 + 3,400 = 8,600

Hence, the approximate sum = 8,600.

(iv) (9,483 + 6,572)

Round 9,483 to the nearest hundred: The tens digit is 8, so it rounds up to 9,500.

Round 6,572 to the nearest hundred: The tens digit is 7, so it rounds up to 6,600.

Approximate sum: 9,500 + 6,600 = 16,100

Hence, the approximate sum = 16,100.