Read the question

Find the missing numbers.

Addition and subtraction facts
The question content

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

In case of an incorrect answer

Addition and subtraction facts - answer incorrect
The answer result

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

Addition and subtraction facts - solution 1
Step 1

In case of a correct answer

Addition and subtraction facts - answer correct
Correct result

Check the correct result
and then press the Next to continue answering the next question.