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Computation Algorithms: Addition
 
Objective #6: Four-digit addend plus four-digit addend.

Example

Follow these steps to solve this problem:

  1. Add the thousands (8000+3000).
  2. Write 11000.
  3. Add the hundreds (500+600).
  4. Write 1100.
  5. Add the tens (20+80).
  6. Write 80.
  7. Add the ones (6+6).
  8. Write 12.
  9. Add the partial sums.
  10. Write 12192.
Directions: Enter the answer for each addition problem. Press tab or use the mouse to move to the next problem. When you are finished click the Submit button.

1.

3366
+2698


2.

5783
+8807


3.

7522
+4534

           

4.

3029
+6068


5.

5896
+6504


6.

7006
+7809

           

7.

5930
+2780


8.

2535
+3457


9.

1440
+9029

           

10.

3422
+4092


11.

9922
+1999


12.

1232
+4378

           

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