Trevor sees 8 red birds. He sees 5 more red birds than blue birds. How many blue birds does Trevor see?
The correct answer and explanation is:
Correct Answer: Trevor sees 3 blue birds.
Explanation (300 words):
To solve this problem, we need to figure out how many blue birds Trevor sees, based on the information provided:
- Trevor sees 8 red birds.
- He sees 5 more red birds than blue birds.
Let’s call the number of blue birds Trevor sees x.
According to the problem:
Red birds = Blue birds + 5
So we can write:
8 = x + 5
To find x, subtract 5 from both sides of the equation:
8 – 5 = x
x = 3
So, Trevor sees 3 blue birds.
Why This Works:
This is a simple algebraic comparison problem. Trevor sees more red birds than blue birds, and we’re told the exact difference—5 more red birds. The total number of red birds is given (8), so we subtract the difference (5) to figure out how many blue birds he sees.
You can also use basic reasoning without algebra. If Trevor sees 8 red birds and he sees 5 more red birds than blue birds, we ask:
“What number, when 5 is added to it, gives 8?”
The answer is:
3, because 3 + 5 = 8.
This kind of problem helps build mathematical thinking and problem-solving skills. It teaches how to set up an equation or compare quantities using logic and subtraction. Understanding the relationship between numbers (like “more than” or “less than”) is key to interpreting word problems in math.
So in conclusion, Trevor sees 3 blue birds.