Which expression is not equal to 28?
A. (9+25÷5)×2
B. [(13−4×2)−1]×7
C. 42÷6+28÷4
D. 7×[8−(12−4×2)]
1 answer
B. [(13−4×2)−1]×7 simplifies to (13-8)-1 × 7, which is equal to 28 - 7 = 21, not 28.
A. (9+25÷5)×2
B. [(13−4×2)−1]×7
C. 42÷6+28÷4
D. 7×[8−(12−4×2)]
1 answer