explain how you would estimate to subtrac 189 from 643
189 rounded up to the nearest 100 number would be 200; 200 subtracted from 643 = 443 , 200 - 189 454
400
Oh, dude, front end estimation is like when you round numbers to make math easier, right? So, if you wanna subtract 189 from 643 using front end estimation, you could round 643 to 600 and 189 to 200, then subtract 200 from 600 to get 400. But like, who needs estimation when you can just do the actual math, am I right?
2,643 minus 100 = 2,543
explain how you would estimate to subtrac 189 from 643
189 rounded up to the nearest 100 number would be 200; 200 subtracted from 643 = 443 , 200 - 189 454
192 minus 189 is 3.
450
200 -189 =11
500
640 - 190 = 450
400
400
1343 - 700 = 643
It equals 1,861. This is how you do the work. 2,005 -189 _____ 1,861
2009 - 1820 = 189