Choose the correct answer:
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Choose the correct answer:
To solve this problem, we'll perform column addition:
Step 1: Write the numbers in column form:
Step 2: Add the units digit: . Write and carry over .
Step 3: Add the tens digit plus carry over: .
Step 4: Add the hundreds digit: .
Step 5: Finally, add the thousands digit: . (Only one digit in this place value)
Performing the addition, we have:
Therefore, the sum of is .
The correct choice from the given options is:
Choose the correct answer:
\( 693+705=\text{ ?} \)
Starting from the units column ensures proper carrying! When digits add up to 10 or more, you need to carry that extra value to the next column. Working left to right would mess up this carrying process.
Carrying over means taking the tens digit from your sum and adding it to the next column. For example, when , write down 1 and carry the other 1 to the tens column!
Try these methods: 1) Add the numbers in reverse order, 2) Use subtraction to verify: , or 3) Estimate first: 150 + 1100 ≈ 1250.
Your answer will be wrong by exactly 10, 100, or 1000 depending on which column you forgot! Always double-check each step and look for sums of 10 or greater that need carrying.
You can try, but column addition is safer for larger numbers! Mental math works well for smaller problems, but writing it out in columns reduces errors and shows your work clearly.
Wrong answer choices often come from common mistakes like forgetting to carry, adding incorrectly, or misaligning digits. That's why careful column setup and checking are so important!
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