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## Understanding Equality - Sample Math Practice Problems

The math problems below can be generated by MathScore.com, a math practice program for schools and individual families. References to complexity and mode refer to the overall difficulty of the problems as they appear in the main program. In the main program, all problems are automatically graded and the difficulty adapts dynamically based on performance. Answers to these sample questions appear at the bottom of the page. This page does not grade your responses.

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### Complexity=4

Select from the given choices.

1.   Which of these is wrong?
 2 = 1 + 1
 1 + 1 = 1 + 1
 3 = 3
 2 + 1 = 4 - 1
 None of the above.
2.   Which of these is wrong?
 4 - 4 = 2
 2 = 2
 0 + 3 = 3 + 0
 1 + 3 = 5 - 1
 None of the above.

### Complexity=7

Select from the given choices.

1.   Which of these is wrong?
 7 - 5 = 3
 3 = 3
 0 + 7 = 7 + 0
 4 + 6 = 5 + 5
 None of the above.
2.   Which of these is wrong?
 3 - 1 = 2
 1 + 6 = 6 + 1
 7 = 6
 2 + 6 = 3 + 5
 None of the above.

### Complexity=10

Select from the given choices.

1.   Which of these is wrong?
 8 + 4 = 10 + 2
 6 = 6
 9 + 2 = 11
 3 + 9 = 9 + 3
 None of the above.
2.   Which of these is wrong?
 6 = 5
 5 = 8 - 3
 9 + 1 = 1 + 9
 7 + 4 = 9 + 2
 None of the above.

### Complexity=4

Select from the given choices.

1Which of these is wrong?
 2 = 1 + 1
 1 + 1 = 1 + 1
 3 = 3
 2 + 1 = 4 - 1
 None of the above.
2Which of these is wrong?
 4 - 4 = 2
 2 = 2
 0 + 3 = 3 + 0
 1 + 3 = 5 - 1
 None of the above.

### Complexity=7

Select from the given choices.

1Which of these is wrong?
 7 - 5 = 3
 3 = 3
 0 + 7 = 7 + 0
 4 + 6 = 5 + 5
 None of the above.
2Which of these is wrong?
 3 - 1 = 2
 1 + 6 = 6 + 1
 7 = 6
 2 + 6 = 3 + 5
 None of the above.

### Complexity=10

Select from the given choices.

1Which of these is wrong?
 8 + 4 = 10 + 2
 6 = 6
 9 + 2 = 11
 3 + 9 = 9 + 3
 None of the above.