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Fast Addition Reverse - 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=9, Mode=10

Add. Press TAB or ENTER to move to the next problem.

1.   10 + 4 =
2.   10 + 1 =

Complexity=9, Mode=9

Add. Press TAB or ENTER to move to the next problem.

1.   9 + 2 =
2.   9 + 6 =

Complexity=9, Mode=8

Add. Press TAB or ENTER to move to the next problem.

1.   8 + 3 =
2.   8 + 1 =

Complexity=9, Mode=8,9

Add. Press TAB or ENTER to move to the next problem.

1.   9 + 8 =
2.   9 + 9 =

Complexity=9, Mode=7

Add. Press TAB or ENTER to move to the next problem.

1.   7 + 7 =
2.   7 + 8 =

Complexity=9, Mode=7-9

Add. Press TAB or ENTER to move to the next problem.

1.   7 + 9 =
2.   8 + 4 =

Complexity=9, Mode=6

Add. Press TAB or ENTER to move to the next problem.

1.   6 + 7 =
2.   6 + 9 =

Complexity=9, Mode=6-9

Add. Press TAB or ENTER to move to the next problem.

1.   9 + 9 =
2.   7 + 4 =

Complexity=9, Mode=5

Add. Press TAB or ENTER to move to the next problem.

1.   5 + 3 =
2.   5 + 7 =

Complexity=9, Mode=5-9

Add. Press TAB or ENTER to move to the next problem.

1.   9 + 9 =
2.   5 + 1 =

Complexity=9, Mode=4

Add. Press TAB or ENTER to move to the next problem.

1.   4 + 2 =
2.   4 + 5 =

Complexity=9, Mode=4-9

Add. Press TAB or ENTER to move to the next problem.

1.   5 + 7 =
2.   9 + 2 =

Complexity=9, Mode=3

Add. Press TAB or ENTER to move to the next problem.

1.   3 + 4 =
2.   3 + 9 =

Complexity=9, Mode=3-9

Add. Press TAB or ENTER to move to the next problem.

1.   7 + 7 =
2.   5 + 8 =

Complexity=9, Mode=2

Add. Press TAB or ENTER to move to the next problem.

1.   2 + 4 =
2.   2 + 8 =

Complexity=10

Add. Press TAB or ENTER to move to the next problem.

1.   8 + 3 =
2.   3 + 7 =

Answers

Complexity=9, Mode=10

Add. Press TAB or ENTER to move to the next problem.

#ProblemCorrect AnswerYour Answer
110 + 4 =
#ProblemCorrect AnswerYour Answer
210 + 1 =

Complexity=9, Mode=9

Add. Press TAB or ENTER to move to the next problem.

#ProblemCorrect AnswerYour Answer
19 + 2 =
#ProblemCorrect AnswerYour Answer
29 + 6 =

Complexity=9, Mode=8

Add. Press TAB or ENTER to move to the next problem.

#ProblemCorrect AnswerYour Answer
18 + 3 =
#ProblemCorrect AnswerYour Answer
28 + 1 =

Complexity=9, Mode=8,9

Add. Press TAB or ENTER to move to the next problem.

#ProblemCorrect AnswerYour Answer
19 + 8 =
Solution
To add 8, add 10 and subtract 2.
9 + 10 = 19
19 - 2 = 17
#ProblemCorrect AnswerYour Answer
29 + 9 =
Solution
To add 9, add 10 and subtract 1.
9 + 10 = 19
19 - 1 = 18

Complexity=9, Mode=7

Add. Press TAB or ENTER to move to the next problem.

#ProblemCorrect AnswerYour Answer
17 + 7 =
#ProblemCorrect AnswerYour Answer
27 + 8 =
Solution
To add 8, add 10 and subtract 2.
7 + 10 = 17
17 - 2 = 15

Complexity=9, Mode=7-9

Add. Press TAB or ENTER to move to the next problem.

#ProblemCorrect AnswerYour Answer
17 + 9 =
Solution
To add 9, add 10 and subtract 1.
7 + 10 = 17
17 - 1 = 16
#ProblemCorrect AnswerYour Answer
28 + 4 =

Complexity=9, Mode=6

Add. Press TAB or ENTER to move to the next problem.

#ProblemCorrect AnswerYour Answer
16 + 7 =
#ProblemCorrect AnswerYour Answer
26 + 9 =
Solution
To add 9, add 10 and subtract 1.
6 + 10 = 16
16 - 1 = 15

Complexity=9, Mode=6-9

Add. Press TAB or ENTER to move to the next problem.

#ProblemCorrect AnswerYour Answer
19 + 9 =
Solution
To add 9, add 10 and subtract 1.
9 + 10 = 19
19 - 1 = 18
#ProblemCorrect AnswerYour Answer
27 + 4 =

Complexity=9, Mode=5

Add. Press TAB or ENTER to move to the next problem.

#ProblemCorrect AnswerYour Answer
15 + 3 =
#ProblemCorrect AnswerYour Answer
25 + 7 =

Complexity=9, Mode=5-9

Add. Press TAB or ENTER to move to the next problem.

#ProblemCorrect AnswerYour Answer
19 + 9 =
Solution
To add 9, add 10 and subtract 1.
9 + 10 = 19
19 - 1 = 18
#ProblemCorrect AnswerYour Answer
25 + 1 =

Complexity=9, Mode=4

Add. Press TAB or ENTER to move to the next problem.

#ProblemCorrect AnswerYour Answer
14 + 2 =
#ProblemCorrect AnswerYour Answer
24 + 5 =

Complexity=9, Mode=4-9

Add. Press TAB or ENTER to move to the next problem.

#ProblemCorrect AnswerYour Answer
15 + 7 =
#ProblemCorrect AnswerYour Answer
29 + 2 =

Complexity=9, Mode=3

Add. Press TAB or ENTER to move to the next problem.

#ProblemCorrect AnswerYour Answer
13 + 4 =
#ProblemCorrect AnswerYour Answer
23 + 9 =
Solution
To add 9, add 10 and subtract 1.
3 + 10 = 13
13 - 1 = 12

Complexity=9, Mode=3-9

Add. Press TAB or ENTER to move to the next problem.

#ProblemCorrect AnswerYour Answer
17 + 7 =
#ProblemCorrect AnswerYour Answer
25 + 8 =
Solution
To add 8, add 10 and subtract 2.
5 + 10 = 15
15 - 2 = 13

Complexity=9, Mode=2

Add. Press TAB or ENTER to move to the next problem.

#ProblemCorrect AnswerYour Answer
12 + 4 =
#ProblemCorrect AnswerYour Answer
22 + 8 =

Complexity=10

Add. Press TAB or ENTER to move to the next problem.

#ProblemCorrect AnswerYour Answer
18 + 3 =
#ProblemCorrect AnswerYour Answer
23 + 7 =
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