14 times 10
280
179
To find four numbers that equal 140, one possible combination is 35, 35, 35, and 35. Another combination could be 50, 40, 30, and 20. You can also use negative numbers, such as 100, 50, -10, and 0. The key is that the sum of the four selected numbers must equal 140.
2 x 2 x 5 x 7 = 140
140 + 20 + 6 = 166.
280
There are infinitely many pairs. The simplest is 1 and 140.
4760
179
10 and 14 5 and 28 4 and 35 2 and 70
2 x 2 x 5 x 7 = 140
140 + 20 + 6 = 166.
X + y = 140 x-y = 20 y = x-20 x + x -20 =140 2x = 160 x = 80 y = 60
-117
28 35.
70*2
-144