Pages

Wednesday 3 April 2019

Tidy numbers

I have been learning how to do tidy numbers.  Tidy numbers is a maths strategy to use a number line to solve equations. This is how I solved the equation. 

71 + _____ = 103

I jumped to 80 because that is the nearest tidy number. That is + 9
Then I jumped to 90.  That is + 10
Then I jumped to 100.  That is + 10
Then I jumped to 103.  That is + 3

They add to 32.  So the equation is 71 + 32 = 103


2 comments:

  1. hi brooke i am Ezra from saint marys school.we lernt to use tidy numbers as well.

    ReplyDelete
  2. Kia ora Brooke. I am Elena from St Mary’s School.
    I like how you put how you worked it out. Maybe you could put a number line in.
    Please visit my blog
    here

    Mā te wā
    Elena

    ReplyDelete