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Long 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=20

Add. Press TAB or ENTER to move to the next problem.
1.  
12
+ 11
2.  
12
+ 2

Complexity=60

Add. Press TAB or ENTER to move to the next problem.
1.  
21
+ 45
2.  
56
+ 8

Complexity=200

Add. Press TAB or ENTER to move to the next problem.
1.  
121
+ 125
2.  
148
+ 67

Complexity=700

Add. Press TAB or ENTER to move to the next problem.
1.  
488
+ 700
2.  
559
+ 683

Complexity=1000

Add. Press TAB or ENTER to move to the next problem.
1.  
974
+ 754
2.  
495
+ 627

Complexity=5000

Add. Press TAB or ENTER to move to the next problem.
1.  
3000
+ 4954
2.  
4964
+ 4993

Complexity=10000

Add. Press TAB or ENTER to move to the next problem.
1.  
9766
+ 7967
2.  
9011
+ 9836

Complexity=20000

Add. Press TAB or ENTER to move to the next problem.
1.  
10202
+ 19957
2.  
12088
+ 18483

Complexity=100000

Add. Press TAB or ENTER to move to the next problem.
1.  
44392
+ 99047
2.  
54102
+ 99237

Answers

Complexity=20

Add. Press TAB or ENTER to move to the next problem.
#Correct AnswerYour Answer
1
12
+ 11
#Correct AnswerYour Answer
2
12
+ 2

Complexity=60

Add. Press TAB or ENTER to move to the next problem.
#Correct AnswerYour Answer
1
21
+ 45
#Correct AnswerYour Answer
2
56
+ 8
Solution
  1 
  56
+  8
  64

Complexity=200

Add. Press TAB or ENTER to move to the next problem.
#Correct AnswerYour Answer
1
121
+ 125
#Correct AnswerYour Answer
2
148
+ 67
Solution
  11 
  148
+  67
  215

Complexity=700

Add. Press TAB or ENTER to move to the next problem.
#Correct AnswerYour Answer
1
488
+ 700
Solution
  1   
   488
+  700
  1188
#Correct AnswerYour Answer
2
559
+ 683
Solution
  111 
   559
+  683
  1242

Complexity=1000

Add. Press TAB or ENTER to move to the next problem.
#Correct AnswerYour Answer
1
974
+ 754
Solution
  11  
   974
+  754
  1728
#Correct AnswerYour Answer
2
495
+ 627
Solution
  111 
   495
+  627
  1122

Complexity=5000

Add. Press TAB or ENTER to move to the next problem.
#Correct AnswerYour Answer
1
3000
+ 4954
#Correct AnswerYour Answer
2
4964
+ 4993
Solution
  11  
  4964
+ 4993
  9957

Complexity=10000

Add. Press TAB or ENTER to move to the next problem.
#Correct AnswerYour Answer
1
9766
+ 7967
Solution
  1111 
   9766
+  7967
  17733
#Correct AnswerYour Answer
2
9011
+ 9836
Solution
  1    
   9011
+  9836
  18847

Complexity=20000

Add. Press TAB or ENTER to move to the next problem.
#Correct AnswerYour Answer
1
10202
+ 19957
Solution
  11   
  10202
+ 19957
  30159
#Correct AnswerYour Answer
2
12088
+ 18483
Solution
  1 11 
  12088
+ 18483
  30571

Complexity=100000

Add. Press TAB or ENTER to move to the next problem.
#Correct AnswerYour Answer
1
44392
+ 99047
Solution
  11 1  
   44392
+  99047
  143439
#Correct AnswerYour Answer
2
54102
+ 99237
Solution
  11    
   54102
+  99237
  153339
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