564-53.2= 510.8
So you do 564-53 which is 511 and then you have to take away .2 which is 510.8
1=0.10
For this you do 700- 89= 611 and then you add .3 to 611 because we got rid of it earlier, and you subtract it with the other .3 that we got rid off and so the answer is 611