94-multiply-the-number.md

Problem:

Jack really likes his number five: the trick here is that you have to multiply each number by 5 raised to the number of digits of each numbers, so, for example:

multiply(3)==15
multiply(10)==250
multiply(200)==25000
multiply(0)==0
multiply(-3)==-15

multiply(3)==15
multiply(10)==250
multiply(200)==25000
multiply(0)==0
multiply(-3)==-15

multiply(3)==15
multiply(10)==250
multiply(200)==25000
multiply(0)==0
multiply(-3)==-15

multiply   3  `shouldBe`    15
multiply  10  `shouldBe`   250
multiply 200  `shouldBe` 25000
multiply   0  `shouldBe`     0
multiply (-3) `shouldBe`  (-15)

Solution