300
640 = 13367494538843734067838845976576
40
7 times 6 is 42. If you subtract two, you get 42-2= 40.
500*6 + 40*6 + 3*6 = 3000 + 240 + 36
40 x 10 = 400 40 x 6 = 240 40 x 16 = 640
7*46 = 7*(40 + 6) = 7*40 + 7*6 = 280 + 42 = 322
34
Try 6!
The product of 40 and -5 is -200, whereas the product of 40 and 5 is 200.
The product of 70 and 40 = 70 x 40 = 2800.
10 + 4 = 14 10 x 4 = 40 10 - 4 = 6 or 4 - 10 = -6 so your answer is 6 or -6
what are three decimals with a product that is about 40