Question

Create an expression using brackets, parentheses, and symbols to make the sequence 2, 5, 1, 4, 1 equal to 4.

a) (2 - 5) ÷ (1 + 4) + 1
b) 2 - (5 + 1) ÷ (4 - 1)
c) 2 ÷ (5 - 1) + (4 - 1)
d) (2 + 5) - (1 ÷ 4) + 1

Answer 1

The correct expression to make the sequence 2, 5, 1, 4, 1 equal to 4 is (2 + 5) - (1 ÷ 4) + 1. This expression involves performing addition, division, and subtraction in the correct order of operations.

Step-by-step explanation:

The correct expression to make the sequence 2, 5, 1, 4, 1 equal to 4 is option d) (2 + 5) - (1 ÷ 4) + 1.

To solve this expression, we perform the operations inside the parentheses first. We add 2 and 5, then divide 1 by 4.

Next, we subtract the result of the division from the sum of 2 and 5. Finally, we add 1 to the difference obtained.

The final result is 4.