8 x 90 = 720
If you know the number is 7128 I do not understand why on earth anyone would want to estimate it!
59
2.65
Let's see. Estimating would start with rounding up 498. 498 will turn into 500. Next, we round 12. Twelve rounds to 10, so it ends up to become 500 divided by 10. 500 divided by 10 is 50. So, estimated, 498 divided by 12 would be somewhere near 50. (by the way, 498 divided by 12 is actually, non-estimated, 41.5.)
6.9877
to estimate the 738 divided by 84.We just have to estimate 738 near to number that is in 84'stable
The answer is no, whichever way you choose to do the division: 8 ÷ 620 = 0.012903226 620 ÷ 8 = 77.5
What's "best" depends on what you are going to use this for. You can take a calculator and do the exact calculation. Or you can round the numbers in a way that makes it easy to do the calculations in your head.
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.
hold it and compare it to a kilo
25% of 60 is 15.
What's "best" depends on what you are going to use this for. You can take a calculator and do the exact calculation. Or you can round the numbers in a way that makes it easy to do the calculations in your head.
Less prone to bias errors.
8 x 90 = 720
70.013
8.8525