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7x4=28. 3+3+3+3+3+3+3+3=24. The number. 0. Example : 6 students each threw away four papers in the garbage. How many papers were thrown in the garbage? 24.
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7x4=28 3+3+3+3+3+3+3+3=24 The number 0 Example: 6 students each threw away four papers in the garbage. How many papers were thrown in the garbage? 24