Walt: we are learning to do addition and subtraction.
729+359=
700+300=1000
20+50=70
9+9=18
1000+70+18= 1088
2343+4189=
2000+4000+6000
300+100=400
40+80=120
3+9=12
6000+400+120+12=6532
751-240=
700-200=500
50-40=10
1-0=1
500+10+1=511
That's the end of my work.
No comments:
Post a Comment
Note: only a member of this blog may post a comment.