Read the question

Horizontal addition of three or more single digits
The question content

Then answer and click the Submit button to send the answer and view the results.

In case of an incorrect answer

Horizontal addition of three or more single digits - answer incorrect
The answer result

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Then click the Solution To view instructions on how to answer correctly.

Horizontal addition of three or more single digits - solution 1
Step 1
Horizontal addition of three or more single digits - solution 2
Step 2

In case of a correct answer

Horizontal addition of three or more single digits - answer correct
Correct result

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