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Integer Addition - 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=5, Mode=2

Add.

1.   - 1 + - 3 =
2.   0 + + 5 =

Complexity=7, Mode=2

Add.

1.   + 3 + + 1 =
2.   5 + 2 =

Complexity=9, Mode=2

Add.

1.   - 2 + + 4 =
2.   - 8 + - 8 =

Complexity=10, Mode=3

Add.

1.   - 2 + 3 + 1 =
2.   + 6 + 5 + - 2 =

Complexity=20, Mode=3

Add.

1.   + 16 + - 12 + 7 =
2.   + 14 + 11 + - 9 =

Complexity=50, Mode=3

Add.

1.   11 + - 42 + - 14 =
2.   - 33 + - 10 + - 27 =

Complexity=100, Mode=3

Add.

1.   81 + + 7 + - 91 =
2.   + 31 + - 42 + - 9 =

Complexity=300, Mode=3

Add.

1.   - 155 + + 280 + 82 =
2.   + 46 + 241 + - 244 =

Complexity=500, Mode=4

Add.

1.   314 + - 370 + + 249 + - 155 =
2.   - 468 + - 484 + 374 + - 28 =

Answers


Complexity=5, Mode=2

Add.

#ProblemCorrect AnswerYour Answer
1- 1 + - 3 =
Solution
-1 + -3 = -(1 + 3) = -4
#ProblemCorrect AnswerYour Answer
20 + + 5 =
Solution
0 + 5 = 5

Complexity=7, Mode=2

Add.

#ProblemCorrect AnswerYour Answer
1+ 3 + + 1 =
Solution
3 + 1 = 4
#ProblemCorrect AnswerYour Answer
25 + 2 =
Solution
5 + 2 = 7

Complexity=9, Mode=2

Add.

#ProblemCorrect AnswerYour Answer
1- 2 + + 4 =
Solution
-2 + 4 = 4 - 2 = 2
#ProblemCorrect AnswerYour Answer
2- 8 + - 8 =
Solution
-8 + -8 = -(8 + 8) = -16

Complexity=10, Mode=3

Add.

#ProblemCorrect AnswerYour Answer
1- 2 + 3 + 1 =
Solution
-2 + 3 = 3 - 2 = 1
1 + 1 = 2
#ProblemCorrect AnswerYour Answer
2+ 6 + 5 + - 2 =
Solution
6 + 5 = 11
11 + -2 = 11 - 2 = 9

Complexity=20, Mode=3

Add.

#ProblemCorrect AnswerYour Answer
1+ 16 + - 12 + 7 =
Solution
16 + -12 = 16 - 12 = 4
4 + 7 = 11
#ProblemCorrect AnswerYour Answer
2+ 14 + 11 + - 9 =
Solution
14 + 11 = 25
25 + -9 = 25 - 9 = 16

Complexity=50, Mode=3

Add.

#ProblemCorrect AnswerYour Answer
111 + - 42 + - 14 =
Solution
11 + -42 = -(42 - 11) = -31
-31 + -14 = -(31 + 14) = -45
#ProblemCorrect AnswerYour Answer
2- 33 + - 10 + - 27 =
Solution
-33 + -10 = -(33 + 10) = -43
-43 + -27 = -(43 + 27) = -70

Complexity=100, Mode=3

Add.

#ProblemCorrect AnswerYour Answer
181 + + 7 + - 91 =
Solution
81 + 7 = 88
88 + -91 = -(91 - 88) = -3
#ProblemCorrect AnswerYour Answer
2+ 31 + - 42 + - 9 =
Solution
31 + -42 = -(42 - 31) = -11
-11 + -9 = -(11 + 9) = -20

Complexity=300, Mode=3

Add.

#ProblemCorrect AnswerYour Answer
1- 155 + + 280 + 82 =
Solution
-155 + 280 = 280 - 155 = 125
125 + 82 = 207
#ProblemCorrect AnswerYour Answer
2+ 46 + 241 + - 244 =
Solution
46 + 241 = 287
287 + -244 = 287 - 244 = 43

Complexity=500, Mode=4

Add.

#ProblemCorrect AnswerYour Answer
1314 + - 370 + + 249 + - 155 =
Solution
314 + -370 = -(370 - 314) = -56
-56 + 249 = 249 - 56 = 193
193 + -155 = 193 - 155 = 38
#ProblemCorrect AnswerYour Answer
2- 468 + - 484 + 374 + - 28 =
Solution
-468 + -484 = -(468 + 484) = -952
-952 + 374 = -(952 - 374) = -578
-578 + -28 = -(578 + 28) = -606
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