1.9 / 102 = 0.019
50/10+16-19= 2
19 + 7 ÷ 2 - 5 = 19 + ((7 ÷ 2) - 5) = 10 + (3.5 - 5) = 10 + -1.5 = 10 - 1.5 = 8.5
2.45 x 10^104
19
19/20 minus 3/10 = 13/20
343 - (19/4) = 338.25
-14.5
9 - (-10) = 9 + 10 = 19
56
19 minus 6 equals 13.
It is: 19 minus 1.9 = 17.1
Approximately 2.439 x 10^-19. It is the same as taking 1 divided by (456^7) which is 1 divided by (4.0997 x 10^18)