Find the approximate difference to the nearest hundred :

(i) (769 - 435)

(ii) (859 - 675)

(iii) (8,359 - 4,317)

(i) (769 - 435)

Round 769 to the nearest hundred: The tens digit is 6, so it rounds up to 800.

Round 435 to the nearest hundred: The tens digit is 3, so it rounds down to 400.

Approximate difference: 800 − 400 = 400

Hence, the approximate difference = 400.

(ii) (859 - 675)

Round 859 to the nearest hundred: The tens digit is 5, so it rounds up to 900.

Round 675 to the nearest hundred: The tens digit is 7, so it rounds up to 700.

Approximate difference: 900 − 700 = 200

Hence, the approximate difference = 200.

(iii) (8,359 - 4,317)

Round 8,359 to the nearest hundred: The tens digit is 5, so it rounds up to 8,400.

Round 4,317 to the nearest hundred: The tens digit is 1, so it rounds down to 4,300.

Approximate difference: 8,400 − 4,300 = 4,100

Hence, the approximate difference = 4,100.