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How many numbers are there between 76 and 82 in the third unit of mathematics in the first grade of primary school?
How many numbers are there between 76 and 82? Five numbers.

Look at it this way: 77-78-79-80-8 1

How many numbers are there between 6 and 12? 12-6=6, one less than the number of results means five answers.

8- 12? 12-8=4, and the answer is 3,9 =10-1.

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