Question

$7 \times (12 + 9) +3 - 9 =\rule{ 1cm}{0.1pt}$

• A. 20
• B. 30
• C. 50
• D. 40

Answer 1

Answer:

D. 40

7 × (12 + 9) ÷ 3 − 9 = 7 × 21 ÷ 3 − 9 = 7 × 7 - 9 = 49 - 9 = 40