+870 If you divide 30 by 1/2, then substract -4 from the result, what do you get ?
+870 Exactly: The answer is 64 and not 11 because 30 divide by 1/2 isn't 30 divide by 2, but 30*2=60, because a/b=a*(1/b). And 60-(-4) isn't 60-4 but 60+4=64.
30 divided 1/2= 15. When you subtract 4 from this (15-4) you end up with 11. This is the final answer.
+870 Exactly: The answer is 64 and not 11 because 30 divide by 1/2 isn't 30 divide by 2, but 30*2=60, because a/b=a*(1/b). And 60-(-4) isn't 60-4 but 60+4=64.
