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 :)
40 x (7/8) = 35 Work: 40/8 = 5 7 x 5 = 35
4.375
Seven eights of 48 can be calculated by multiplying 48 by 7/8. This gives you ( 48 \times \frac{7}{8} = 42 ). Therefore, seven eights of 48 is 42.
7/24
seven tenths
7.25 times 3.33=24.1425
235
5 times
it is 4/16, but you might want to reduce it.
Forty-seven times eighty-nine is four thousand one hundred eighty-three. In numbers, that's 47x89=4,183.
21/32
1764