That equals 559. If you have to, estimate 210 + 350 = 560
280 + 500 = 780
Not in this case.
720/8 = 90
It is 0.7*600 = 420
1,024 equals 210
Estimate 43/81 by using compatible numbers
The best way to estimate a quotient using compatible numbers is to first understand how compatible numbers work. They are numbers that are close in value to the actual numbers and are easily added, subtracted or divided.
i think it is 28x26
59
300 + 60
94
23.3043
70.013
119.3333
77
280 + 500 = 780
6.9877