Super Subtraction Strategies

image image OMG!! This week has been so much fun!! We have been doing Subtraction, one of my favourite kind of Maths subjects. What we have been doing is number lines it was hard but not as hard as I thought it was going to be. We have also been doing some regrouping oh my gosh it was……. easy? I thought it was going to hard?? We ALSO have been working on Subtraction and addition family! If you don’t now what that means I will tell you now, it means that you put numbers together like this.

200-145=55

and then you put another sum that has the same numbers as the last

145+55=200

and then you do the same again

200-55=145

and together we have…..

200-145=55

145+55=200

200-55=145

OMG I have still have to tell you so much! In this two weeks I have been we have been playing lots of really cool games one is called SPACE INVADERS!!!!! I thought that was so cool.

We ALSO have been working on regrouping-algorithm I will show you one that I did….. (That was right )

764

– 512

= 252

 

 

 

 

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