Thursday, May 12, 2016

Prove It to move it work shop 4 maths

L.I. Can I rearrange the order of the numbers to make addition facts easier?
____________
|2+7+8+3= 20 |
|8+2=10          |
|7+3=10          |
|10+10=20      |
_____________
|5+55+40=100 |
|50+5=60         |
|60+40= 100    |

______________
|50+100+50=200 |
|50+50=100        |
|100+100= 200    |
_________________
|600+8+400+2=1010|
|600+200=1000        |
|8+2=10                   |
|1000+10+1010        |

______________
|20+1+80+9=110 |
|20+80=100        |
|1+9=10             |
|100+10=110      |

1 comment: