Solve by Number Bond Method

Addition or Subtraction

Addition or Subtraction

Addition or Subtraction

Addition or Subtraction

Addition or Subtraction

Addition or Subtraction

Addition or Subtraction

Addition or Subtraction

Addition or Subtraction

Addition or Subtraction

Addition or Subtraction

Addition or Subtraction

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Addition or Subtraction

To solve addition and subtraction problems within 10,000, strategies like place value breakdown, regrouping, and estimating are effective. Encourage mental math for smaller numbers and written methods for complex ones. Critique involves assessing efficiency, accuracy, and clarity. Choose strategies based on problem context, balancing speed and precision for best outcomes.