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This diagram illustrates the "counting up" method for subtraction, breaking the distance between 87 and 243 into manageable chunks like 3, 10, 100, and 43 to find the total difference.

Number line diagram solving 243 minus 87 equals 156 using addition jumps of 3, 10, 100, and 43.

Number line diagram solving 243 minus 87 equals 156 using addition jumps of 3, 10, 100, and 43.

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