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To solve this problem, let's follow these steps:
Now, let's work through each step:
Step 1: The problem gives us the number and requires dividing it by .
Step 2: When dividing a number by , you move the decimal point one place to the left. This is a result of how the base-10 system works; dividing by a power of 10 shifts the decimal point left.
Step 3: In the number , the decimal is currently after the numeral "2." Moving the decimal one place left, we have:
Therefore, the result of is .
To ensure accuracy, we compare this result with the provided choices. Choice number 3, , matches our solution.
Thus, the solution to the problem is .
\( \text{0}.07\times10= \)
Think of it this way: when you divide something into 10 equal parts, each part is smaller than the original. Moving the decimal left makes the number smaller, which matches what division should do!
You can always add zeros! For example, if you had , think of 5 as 5.0, then move left to get 0.5.
Absolutely! Dividing by 100 moves the decimal two places left, dividing by 1000 moves it three places left. The pattern continues!
Use this trick: Division makes numbers smaller, so move decimal left. Multiplication makes numbers bigger, so move decimal right.
Leading zeros (like in 0.22) are important and should stay! But trailing zeros after the decimal (like 0.220) can usually be dropped unless specified otherwise.
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