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Addition Grouping - 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=1

For each problem, check to see if two of the numbers add up to 10. Then find the total sum.
Example: 4 + 8 + 6 = ?
Groupable Numbers: 4 + 6
Total sum: (4 + 6) + 8 = 18

1.
9 + 8 + 1 = ?

Groupable Numbers:
 9 + 8
 8 + 1
 9 + 1
 None of the above

Total sum:
2.
1 + 6 + 6 = ?

Groupable Numbers:
 1 + 6
 6 + 6
 None of the above

Total sum:

Complexity=1

For each problem, check to see if two of the numbers add up to 10. Then find the total sum.
Example: 4 + 8 + 6 = ?
Groupable Numbers: 4 + 6
Total sum: (4 + 6) + 8 = 18

19 + 8 + 1 = ?

Groupable Numbers:
 9 + 8
 8 + 1
 9 + 1
 None of the above

Total sum: