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To solve this problem, we'll follow these steps:
Step 1: Identify the numbers to add, which are and .
Step 2: Perform the addition of these numbers.
Now, let's work through these steps:
Step 1: We have the numbers and to be added.
Step 2: Align the numbers vertically as follows:
Start adding from the rightmost digits:
In this case, there is no carry-over.
Now add the next column on the left:
Therefore, the final sum is .
Step 3: Ensure that matches the provided answer choice. Indeed, option 4 corresponds to our calculation.
Therefore, the solution to the problem is .
If we have 67 blocks in total, how many blocks will remain if we remove 5 tens and 4 ones?
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