0
Anonymous
First, multiply 5 and 10 and you get 50. Then since one number is positive and the other is negative, the answer becomes negative. The easiest way to remember this is this chart:
+ +=+
- -= +
-+=-
+-=-
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5x10 = 50 - 4 = 46 Answer - 46
-50
It is 5,000,000 or 5 million.
0.005 = 5x10-3
(4x10-1)+(5x10-2)