fcbgf
Mental math is basically math in your head so for example 40x2=80 so I did that in my head
how to do mental math useing propertys
by using your brain
No difference. Both require you to think it out rather than write it out.
fcbgf
Mental math is basically math in your head so for example 40x2=80 so I did that in my head
how to do mental math useing propertys
510 divide by 52 using mental math and using long div = 9.807692307692308
by using a calculator
by using your brain
You
3.4
yes
No difference. Both require you to think it out rather than write it out.
mental math
If you use mental math, you can't go back to see where you messed up. Plus some teachers are picky and want you to show your work. But unless you're very good at math, and can do it mentally and not get a single thing wrong, then good. However, I think you should still solve it on PAPER.