Pages

Thursday, June 18, 2020

Maths understanding

This week in maths we where working on decimals and fractions.

one of the questions was if 3/5 of the school is boys, and 2/5 girls. There is 2000 students. how many are girls?

The way I worked this out was I found out what 2/5 of 1000 is which is 400. then I doubled it.
giving me 800 which was the right answer.


Something else we are doing in maths is decimals into fractions into percentages.

like this

0.86 = 86/100 = 86%


And the hardest thing for me was one of the questions on a sheet we did.
here is the question

 here is a graph. the students at a school were asked to vote for there favourite lunch item.

Pies- 25%
chocolate 38%
Chips 27%
etc

there is 5000 kids at the school. how many preferred chocolate.

I worked this question out by first figuring out the 38% of 100 which is 38.
then I times 38 by 5
38 x 38 x 38 x 38 x 38 = 190.
190 is the answer



so 190 is the answer.

1 comment:

  1. Just a quick question. Did you mean to write that there were 500 kids at the school? Or are there really 5000? Because if there are 5000 your answer needs one more zero. Aside from that, good figuring...

    ReplyDelete

To support my learning I ask you to comment as follows:
1. Something positive - Begin with a greeting. Talk about something you like about what I have shared.
2. Thoughtful - A comment that will mean something to me to let me know you read/watched or listened to what I had to say. - use any language.
3. Something helpful - Give me some ideas for next time or ask me a question.
Encourage me to make another post

Note: Only a member of this blog may post a comment.