Math's week 3
This week in math's my group learnt 3 different strategies for addition and subtraction. First we watch a few videos on our learn, create, share, to learn the first strategy, our first strategy was really easy, after learning the first strategy, we started learning the other strategies. These ones were a bit harder, here are some examples.
strategy one: strategy two: strategy three:
683+214=? 349+553= 418-49=?
600+200=800 349+1=350 553-1=552 49+_=418
80+10=90 350+552=902 49+1+50+300+18= 418
3+4=7 800+90+7=897 1+50+300+18=369
What strategy is your favorite?
