3×4−2×1+5 equals 15. The equation is true.
To solve this equation, let's consider the possible combinations of the numbers 1, 2, 3, 4, 5:
We need to find a combination that, when operated on according to the given expression (?×? ?-?* ?+?= -9), results in -9.
To achieve a total of 12 using these numbers, consider the following arrangement:
3×4−2×1+5=15.
Here's how it works:
Multiplying 3 by 4 equals 12.
Then subtracting the product of 2 multiplied by 1, which is 2, from 12 gives 10.
Finally, adding 5 to 10 results in 15.
Therefore, 3×4−2×1+5 equals 15.
Question
Fill in the numbers 1, 2, 3, 4, 5 once each to make the equation true: ?×? ?-?* ?+?=15