Subtract 7 from 45: Base-10 Block Decomposition Problem

Step 1: Identify the given numbers; initially, we have 45 45 45 blocks.
Step 2: Determine the number of blocks to remove, which is 7 7 7 .
Step 3: Subtract the removed blocks from the total: 45 − 7 45 - 7 45 − 7 .

Question

If we have 45 blocks in total and we remove 7 of those blocks, how many blocks remain?

Remember you can break down a row of 10 blocks into single units.

To solve this problem, we'll adhere to a few simple steps:

Now, let's perform the calculation:
The difference between $45$ and $7$ can be found by performing the subtraction:
$45 - 7 = 38$ .

Therefore, after removing $7$ blocks from $45$ blocks, the number of blocks remaining is $38$ .

Thus, the solution to the problem is $38$ .

$38$