Posted by shreya on .
would you use mental math to solve 2984+1997+406? explain

math 
Writeacher,
Sure.
Just think of numbers (round up or down) that are closest to each of these and then add.
3000 + 2000 + _____ = ______
Posted by shreya on .
would you use mental math to solve 2984+1997+406? explain
Sure.
Just think of numbers (round up or down) that are closest to each of these and then add.
3000 + 2000 + _____ = ______