How do you estimate seven eights times forty seven?

Answer 1

well its very simple...

seven eights are 56, so you round that off to 60. and then you have 47, so you round that off to 80.

then you have 60x80. to work that out your cross out the "0"'s. now you have 6x8. which equals 48. now you have the "0"s. your crossed out two so n ow you add to your answer. 4800.

that's how you estimate :)