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What does the composition of nouns mean in preschool children's mathematics education test paper? On the concept of composition of numbers
1, the composition of a number refers to a number with two or more digits, and the digits on the first, tenth and hundredth digits * * * together form a complete number.
2. For example, 19 consists of 1 each and 9 1, and 265 consists of 2 100, 6 1 0 and 51.
3. For beginners, you can use calculators, abacus, pointers and other teaching AIDS to strengthen your cognition and sensitivity to the concept of numbers.