Arithmetic

[dotski]

Hi I'm trying to help the girl I watch after school with her 4th grade homework.....it's been a while since I've done theese kinds of problems. The question is:

Kevin has a rabbit, a ferret, a gerbil, and a turtle. He feeds them in a different order each day. In how many different orders can Kevin feed his pets?

The teacher told her that there are 24 different ways but the students have to make an organized list. Any help would be appreciated. Thank you.

 

[Deleted member 4993]

Hi I'm trying to help the girl I watch after school with her 4th grade homework.....it's been a while since I've done theese kinds of problems. The question is:

Kevin has a rabbit, a ferret, a gerbil, and a turtle. He feeds them in a different order each day. In how many different orders can Kevin feed his pets?

The teacher told her that there are 24 different ways but the students have to make an organized list. Any help would be appreciated. Thank you.

start with the first position - it can be filled in four ways.

Then look at the second position - which can be filled in three ways (because only three animals left afte filling the first position. And so on...

a list should look like this:

rabbit, ferret, gerbil, turtle

rabbit, ferret, turtle, gerbil

rabbit, gerbil, ferret, turtle

rabbit, gerbil, turtle, ferret

rabbit, turtle, ferret, gerbil

rabbit, turtle, gerbil, ferret

Now you would need another animal in first place and do similar things.....

 

[davidlinchi]

I think the basic arithmetic is the fundamental cornerstone for higher levels of math. As early as elementary schools students are instructed in the primary forms of calculation with addition, subtraction, multiplication and division. These essential tools of calculation are best learned through the use of arithmetic problems.

 

[Denis]

David, you've made 2 posts, both comments re-activating inactive threads: what is your point?