Mathematics for IGCSE & O level - The Four Operations (Section 1 - No. 43)
How should you evaluate the expression: (6 + 3) x 2 - 4 / 2?
Addition, then multiplication, then division, then subtraction
Parentheses, then multiplication, then division, then subtraction
Multiplication, then division, then addition, then subtraction
Parentheses, then division, then multiplication, then subtraction
解释
Parentheses first, followed by division and then multiplication, finally subtraction.