Dump the box out and count each one
Multiplying the dimensions of the box and dividing by the size of a gumball
Multiply the number of gumballs by the area, and subtract the missing ones
Two friends
Multiply the dimensions of the box by the dimensions of the gumball
Add 10 gumballs for every one a person took
How might someone make an educated guess as to how many gumballs are in the box?
Some
20
100
No missing
Roughly how many gumballs are missing?
100
$50
50
In dollars
150
If there were 500 gumballs in the box how much money would Mike and Jeff get each?
100
$10 gift card
A piece of candy
10
20 giftcard
100 dollars
If there were 798 gumballs in the box how much money would Mike and Jeff get each?
Mike and Jeff are close friends. Their school is having a guessing game to guess how many gumballs are in a box. If they get the right amount they win $100. If they get close they get a $20 gift card. The box looks like it is missing some gumballs. It turns out some people are eating them when they place their guess. 100 people guessed and took a piece of candy. The box is 10" by 10" by 10". Each gumball is 1" each. Mike guessed 500. Jeff guessed 800. They both said they would split their money they win, if they win. 