The students at Northwood School love to play a game called "Counting Collections". In this game, the
students collect objects, and the student who has collected the most objects wins.
Kayden has collected 262 erasers, 451 buttons and 173 pencils.
Jannah has collected 489 straws and 446 rocks.
To estimate who collected the most objects, they round the total number of each type of object, and
then use the rounded numbers to calculate the total for each player.
Kayden rounds all the numbers to the nearest 100.
Jannah rounds all the numbers to the nearest 10.
(a) Based on his rounded calculation, who does Kayden think won the game?
(b) Based on her rounded calculation, who does Jannah think won the game?
(c) Who is correct? Justify your answer.