Use brackets to evaluate: \( 30 \div 6+5 \times 2-4 \div 2 \)

To evaluate the expression \( 30 \div 6 + 5 \times 2 - 4 \div 2 \) using brackets, we can first add brackets for clarity in the order of operations. We know that in order of operations, we should perform multiplication and division from left to right, as well as addition and subtraction. So, we rewrite it with brackets to enforce this order: \[ (30 \div 6) + (5 \times 2) - (4 \div 2) \] Now, let's calculate each part: 1. \( 30 \div 6 = 5 \) 2. \( 5 \times 2 = 10 \) 3. \( 4 \div 2 = 2 \) Now substituting these values back into the expression gives us: \[ 5 + 10 - 2 \] Now, we perform the addition and subtraction from left to right: \[ 5 + 10 = 15 \] \[ 15 - 2 = 13 \] Thus, the evaluated result of the expression \( 30 \div 6 + 5 \times 2 - 4 \div 2 \) is \( 13 \).