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To find the sum of 52 and 9, we'll perform simple addition:
Step 1: Consider the expression .
Step 2: Break down the number 9 into simpler parts. One natural way is .
Step 3: Now express the addition as .
Step 4: Compute the sum: First add , and then .
Step 5: The expression matching is .
Now, looking at the available choices, the choice that matches is
Therefore, the correct representation of the expression 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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