687.5x2=1375
How about: 5*275 = 1375
34 654
309?
-309 + 190 = -119
1.375 billion
309
There are many possible answers. One pair that is easy to remember is 1 and 309.
154.5 * * * * * No. The above answer is for addition, not multiplication. The correct answer is sqrt(309) = ± 17.578 (approx).
100 + 209 = 309
94 309 + 903 - 930 = 309 -27 = 282 282 / 3 = 90 + 4 = 94
2048