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To solve this problem, we'll follow these steps:
Now, let's work through each step:
Step 1: Write the numbers and one on top of the other, aligning their decimal points.
Step 2: Start adding from the right-most digit (tenths place in this case):
Add the digits in the tenths column: . Write in the tenths place and carry over to the ones place.
Continue with the ones column: (carry over) equals .
In the tens column, equals .
Putting it all together, the sum is:
Therefore, the solution to the problem is .
15.1
Choose the correct writing form:
Decimal points show where the ones place ends and fractional parts begin. Aligning them ensures you're adding tenths to tenths and ones to ones, just like place value requires!
When digits add up to 10 or more, you carry the extra to the next column. Write down 1 in the tenths place and carry the other 1 to the ones column, just like with whole numbers!
Use estimation! Round to 11 and to 5. Since , your answer of 15.1 makes sense!
No problem! You can think of as by adding a zero. This doesn't change the value but makes alignment easier.
That's the most common mistake! When you add 6 + 5 = 11, you don't write "11" in the tenths place. You write 1 and carry 1, giving you 15.1, not 14.11.
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