Remove Tens Digit from 447: Base-10 Block Transformation

If in total we have 447 blocks,

and we only remove the tens,

write down the resulting exercise:

To solve this problem, we need to "remove the tens" from the total number of blocks, which is 447:

• Step 1: Identify the tens digit in 447. The number 447 consists of the hundreds digit as 4, the tens digit as 4, and the units digit as 7.
• Step 2: Determine the value of the tens digit. The tens digit 4 represents a total value of $4 \times 10 = 40$.
• Step 3: Subtract the tens value from the total. We subtract 40 from 447: $447 - 40 = 407$

Therefore, the result of removing the tens from 447 is $447 - 40 = 407$.

This exercise corresponds to choice id="2": $447-40=407$.