When multiplying by a square number of ten, just move the decimal however many zeros to the right.
5.68 x 100,000 = 568,000.00
372 multiplied by 568 = 211,296
568 multiplied by 4.30 is 2,442.4
12000 x 100000 = 1200000000
Square root of 100000 = 100 * (square root of 10)
14,000 multiplied by 100,000 is 1,400,000,000
200 x 500 = 100000
100,000 multiplied by 250 is 25,000,000
40,000,000 multiplied by 100,000 is 4,000,000,000,000.
3,000,000 multiplied by 100,000 is 300,000,000,000.
2.7 multiplied by 100,000 is 270,000.
647
40000000