Question

a student is asked to simplify the expression given below using BODMAS rule -12-(10÷5)+5-(-2×3+5)+6-{(-2×3)+1+3-5​

Answer 1

BODMAS rule

• B for Bracket
• O for Order
• D for Division
• M for Multiplication
• A for Addition
• S for Subtraction

∴ - 12 - (10 ÷ 5) + 5 - (- 2 × 3 + 5) + 6 - {(- 2 × 3) + 1 + 3 - 5}

= - 12 - 2 + 5 - (- 2 × 3 + 5) + 6 - {(- 2 × 3) + 1 + 3 - 5}

= - 12 - 2 + 5 - (- 6 + 5) + 6 - {- 6 + 1 + 3 - 5}

= - 12 - 2 + 5 - (- 1) + 6 - {4 - 6 - 5}

= - 12 - 2 + 5 + 1 + 6 - {4 - 6 - 5}

= - 12 - 2 + 5 + 1 + 6 - {4 - 11}

= - 12 - 2 + 5 + 1 + 6 - {- 7}

= - 12 - 2 + 5 + 1 + 6 + 7

= - 12 - 2 + 19

= - 14 + 19

= 5

Answer: required answer is 5.