2 x 3 + 4 + 5 = 15
2 x (3 + 4) + 5 = 19
2 x (3 + 4 + 5) = 24
In math problems without punctuation such as brackets, the standard convention in to solve from left to right. Therefore, you would solve the problem 15-3 times 4 plus nine like by three actions. 15-3 equals 12; 12 times 4 equals 48; 48 plus 9 equals 57.
20 = 400
The equation to find the volume of a rectangular object is (a) volume equals length times width times height.
There are no brackets!
10 plus 10 equals 20 20 divide by 10 equals 2 2 plus 10 equals 12
In the absence of any brackets, that equals 12.
Multiplication and division first, addition and subtraction second. Without brackets, that equation equals 2.
That would be 3 (THREE)
1 plus 1 plus 1 plus 1 equals 1 times 4. 1 times 4 equals 4. 4 minus 4 equals 0. 0
2÷ by what equals 146
43
That would still be 4. If it were times 0 it would be 0.