If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

## Early math review

### Course: Early math review>Unit 4

Lesson 6: Word problems with "more" and "fewer"

# Comparison word problems: roly-polies

Sal solves word problems comparing 2 numbers.  Numbers in the problems are less than 10.

## Want to join the conversation?

• What is a roly-polie?
• Yes, and to add to the answer of OmniHex, they're also known as pill bugs, more specifically, Armadillidiidae. Some may have seen a different kind of roly-poly, known as the pill millipede. They have the ability to conglobulate, (roll into a ball) which is a similar trait shared between the two.

http://en.wikipedia.org/wiki/Pill_millipede
• i still don' quite get this still after the video
• Her is an example: Mia has 10 marbles, Diana has 1 less than Mia. How many marbles does Diana have?

What we know:
~Mia has 10 marbles
~Diana has 1 less than Mia

What we want to know:
~How many marbles Diana has if she has one less then Mia.

How will we find our answer:
~ Through subtraction

10
- 1
-----
9

So, in conclusion, Diana has 9 marbles and Mia has 10.
• If Ki has a square cake and a rectangle cake. The rectangle cake is cut into equal squares. Ki now has 5 square cakes how many cakes did Ki get from the rectangle?
• Ki has 5 cakes, one of which is the original square cake. Subtract 1 cake (the first square cake) to get 4 cakes, which is the amount of cakes Ki got from the rectangle cake.
• guys after this it did not help can you guys help me
• Ok, Ethan thats good but let me try ;) .

ok so Bob has 9 marbles, and Alice has 2 less marbles than Bob. How many marbles does Alice have?

It says less, less means take away so subtract.

lets try one more, Bob has 9 marbles, and Alice has 2 fewer marbles than Bob. How many marbles does Alice have?

Samething it says fewer which is subtraction

ok lets try plus

Bob has 9 marbles, and Alice has 2 more marbles than Bob. How many marbles does Alice have?

more means plus so ya hope this helps
(1 vote)
• ill give u a question

so millie had 11 bugs Then Kelly had 20 bugs so how many millie and kelly had?

11
20
--
• we just need to add 11 and 20 = 31
• what is a Lea?
• Lea is the name of the person who has the roly-polys.