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# Comparing with multiplication and addition: giraffe

Sal solves 2 multiplication comparison word problems.   Created by Sal Khan.

## Want to join the conversation?

• why are the equations so hard?
• They are not hard, you just dont understand them so you need to get more practice on this.
• but how do i do it?
• so if your multiplying like 1x1=1 because there is only one of it and if its like 2x0=0 because there is none of it
• why do the equation look like that instead of it just being simple
• The examples you used are easy but in khan, it is hard. Can you use the question khan? please
• I don't see the point of using a number line, you can do 2 + 2, 2 x 2, 1 + 1 + 1 + 1, etc. So why out of all ways you use a number line?
• so if i did kimmy is 20 feet tall and a horse is 3 times bigger than kimmy how tall would the horse be?.
• 60 feet tall
• Why is he explaining it in such complicated ways??
• cause he is very smart.
duh and who knows if i am 20.
• that is a good drawn giraffe
• but what if they want 70 divided by 40 what do we do
• One method is to reduce 70/40 to 7/4 (from dividing top and bottom by 10).
Then 7/4 = 1 3/4. Every 1/4 is 0.25, so 3/4 is 0.25 * 3 = 0.75. So the final answer is 1.75.

Another method is to do 40 into 70 using long division.
40 goes into 70 once with remainder 70-40 = 30.
Then 40 goes into 300 seven times with remainder 300-280 = 20.
Then 40 goes into 200 five times without a remainder.