Solve the Addition Equation: 89 + 8 = ?

To solve the problem of finding the equivalent expression for $89 + 8$, we can break down the number 8 into components that simplify the addition process. By breaking it down as $8 = 1 + 7$, we can rephrase the addition:

• Step 1: Break down the number 8 as $8 = 1 + 7$.
• Step 2: Add 1 to 89, which gives us 90.
• Step 3: Then add 7 to 90, yielding 97.

Thus, the breakdown of $89 + 8$ can be written as $89 + 1 + 7$, which is equivalent to the original addition.

Now, examining the answer choices:

• Choice 1 ($33 + 2 + 5$) does not add to 97, it adds to 40.
• Choice 2 ($89 + 1 + 6$) results in 96, which is incorrect.
• Choice 3 ($89 + 2 + 7$) results in 98, which is incorrect.
• Choice 4 ($89 + 1 + 7$) is the correct breakdown, resulting in 97.

Therefore, the correct choice is Choice 4: $89 + 1 + 7$.