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Mental Addition and Subtraction - 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=900, Mode=add
Add.
Complexity=500, Mode=sub
Subtract.
Complexity=900, Mode=sub
Subtract.
Complexity=500
Add or subtract.
Complexity=900
Add or subtract.
Answers
Complexity=500, Mode=add
Add.
Complexity=900, Mode=add
Add.
Complexity=500, Mode=sub
Subtract.
Complexity=900, Mode=sub
Subtract.
Complexity=500
Add or subtract.
Complexity=900
Add or subtract.
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