If we have 72 blocks in total and we remove 4 of those blocks, how many blocks remain? Remember you can break down a row of 10 blocks into single units.
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If we have 72 blocks in total and we remove 4 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 will perform a simple subtraction of the number of removed blocks from the total number of blocks.
Now, let's work through each step:
Step 1: We start with blocks and remove blocks.
Step 2: Using the subtraction formula mentioned, we compute:
.
Step 3: Therefore, after removing 4 blocks, the number of blocks that remain is .
Thus, the solution to the problem is .
Add fifty units to the number 31.
What is the resulting number?
Base-10 blocks help visualize the numbers! You can see 72 as 7 long strips (tens) plus 2 individual blocks (ones). This makes subtraction easier to understand.
Great question! If you need to subtract more ones than you have, you can break apart one ten-block into 10 individual blocks. This is called regrouping or borrowing.
Look for key words: 'remove', 'take away', or 'subtract' mean use subtraction. The problem says 'remove 4 blocks', so we subtract!
Absolutely! You can solve directly. The blocks just help you visualize what's happening with the numbers.
Use addition to check subtraction! If 72 - 4 = 68, then 68 + 4 should equal 72. Since it does, your answer is correct!
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