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Solving Subtraction Problems Using Compensation Techniques

Learn how to solve subtraction problems utilizing compensation methods. This approach simplifies calculations by adjusting numbers for easier computation. For example, to solve 729 - 216, we first add 1 to 729 to make it an even number (730). Then, we calculate 730 - 216, resulting in 514. Finally, we subtract the 1 we added, providing the final answer: 514 - 1 = 513. This technique can greatly enhance your arithmetic skills and help with mental math.

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Solving Subtraction Problems Using Compensation Techniques

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  1. Heptagons/compensation This is how to solve a subtraction problem using compensation.

  2. Write down the problem • 729 – 216 = • So we know what to solve.

  3. Plus one to make an even number. • 729 +1 = 730

  4. Work out 730-216= • 730-216=514

  5. Subtract what you added to get the answer. • 514-1=513

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