Drawing models

Lisa has twice as many roses as carnations. She has 12 roses in her garden.

1.    Draw your model

R                          =12

C

2.    
Divide the number of boxes by the total.

         4/12=4     (/=division sing)

3.    Put your answer in all the boxes

R                          =12

C

4

.   
To answer questions they give you, you look at your model, do the work and you’ll get it. Let’s do the following 3 together.

·       How many roses are there?

In this one you have to multiply the 4 two times because there are two boxes with the four in it so your answer should be 8.

·       How many more roses than carnations?

In this case, you’ll need to subtract the number of roses you have from the number of carnations, and you get 4.

·       How many carnations?

On this one, you have to multiply 4 times one. So your answer should be 4.