313
-19
23
8.31 comes closest.
6x5 2x15 1x30
A number multiplied by itself added to itself equals 30. What are the two possible numbers?
15x60
The numbers are: -25 and -30
313
41x2=82
421 and 23
-19
23
81.9 and 10 are two numbers which, when multiplied together, make 819.
72 x 4
21 x 3
How about: 5*275 = 1375