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Computation Algorithms: Addition
 
Objective #5: Four-digit addend plus three-digit addend.

Example

Follow these steps to solve this problem:

  1. Add the thousands (7000+0).
  2. Write 7000.
  3. Add the hundreds (100+900).
  4. Write 1000.
  5. Add the tens (20+10).
  6. Write 30.
  7. Add the ones (9+7).
  8. Write 16.
  9. Add the partial sums.
  10. Write 8046.
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.

4568
+289


2.

5783
+887


3.

2488
+534

           

4.

9173
+668


5.

5576
+354


6.

7196
+269

           

7.

4141
+739


8.

9243
+823


9.

7178
+728

           

10.

3445
+302


11.

5701
+269


12.

2758
+504

           

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