Posted by **Anonymous** on Monday, February 7, 2011 at 5:40pm.

sara is making birthday cards. she takes 1 hour to make 5 cards. on tuesday, sara made 25 cards. how long did sara spend working on the cards on tuesday?

how do you the explain answer to a 3rd grader

- 3rd grade math -
**Ms. Sue**, Monday, February 7, 2011 at 5:48pm
You could use 25 file cards (or old greeting cards?) to represent the birthday cards. Ask the child to make stacks with 5 cards in each stack.

Number each stack with a post-it note. Each stack is labeled 1 hour. The child can then count the hours.

- 3rd grade math -
**helper**, Monday, February 7, 2011 at 5:49pm
5 cards in 1 hour

25 cards in 5 hours

5/hour + 5/hour + 5/hour + 5/hour + 5/hour = 25 cards/5 hour

I'm not sure what a 3rd grader is able to do as far as division or multiplication.

- 3rd grade math -
**lorenso**, Wednesday, February 9, 2011 at 9:37pm
ok look in this problem it says 5 cards she makes in a hour so now we how to figure out how many hours did she spent making 25 cards in Tuesday so we start by putting 5 cards=1hryou would have to write

........5 cards=1hr it until we get to 25

........5 cards=1hr cards then count how

........5 cards=1hr many hours did it took

........5 cards=1hr

........25cards=5hrs (P.S. 25divided by 5 equals 5 or 5 times 5 equals 25 so 5 is the answer) sincerely.. 8th grader

- 3rd grade math -
**FAITH**, Tuesday, April 26, 2011 at 3:21pm
NUMBER 52 I NEED HELP ON

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