Answer :
a) The estimated value of 98.5 x 13 is 1280.5.
b) The estimated value of 102.3 / 4.7 is 21.77.
a) To estimate the value of 98.5 × 13:
Estimate= 98.5 × 13 = 1280.5
This is a quick approximation by rounding 98.5 to 100 for simplicity.
b) To estimate the value of 102.3 / 4.7:
Estimate = 100/ 5 =20
This is a quick approximation by rounding 102.3 to 100 and 4.7 to 5 for simplicity.
