Please explain how they don't make sense. You have a big number and it gets split into two parts. https://en.m.wikipedia.org/wiki/Number_bond |
It's not how I learned it back in the day, so it's wrong. |
| Jesus Christ, if you all can do it so much better, then do it. Quit your jobs. Homeschool your kids. Teach them math the way you learned because you can’t possibly fathom learning in different ways. |