Question

(8) This is part of Dafydd's homework.

a )Explain what Dafydd has done wrong.
b )Write the correct answer.


Question
Round 39.47 to the nearest whole number.
Solution :
The 7 rounds the 4 up to a 5 so 39.47 = 39.5
Then the 5 rounds the 39 up to 40.
So, 39.47 40 (to the nearest whole number)

Answer 1

A. Dafydd has rounded the decimal value for no reason which is pointless. He has gone from left to right.
B. 39