Maths

We learned how to subtacion useing tidy numebers. I solved 64-7= ?

The nearest tidy number was 60 so i had to take away the 4 from the 64 to get 60 .

Then I Took away 3 from 60 then i got 57.

Then after we finshed the problems we chicked if it was right with scales
LI: to subtract tidy numbers