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Multi-digit awareness exercise

Class ________ name __________ test number _______ group _________ score ________

Multi-digit recognition

1. Fill in.

1, 8 □ 578≈80000, there are numbers that can be filled in.

2, 30060005000 is a () digit, 6 is in the () digit, it means 6 (), 3 is in the () digit, it means () ().

3. Enter ">", "<" or "=" in ○.

82006 ○ 82600 900000000 ○ 9 billion 1234000000 ○ 1000002340

4. Use 6, 7, 8, 9, and three zeros to form a minimum seven-digit number, and do not read one of the zeros. This number is (), and the mantissa after 10,000 is omitted ()

5, a number, rounded up to get 30,000, the maximum number is (), the minimum is ().

6. A natural number. The number on the highest digit is "5". The numbers on the other digits are the smallest natural number. This number is written as (), and the number rewritten as "10,000" is ().

7. When reading a large number, 0 in () is not read.

8. The eighth position from the single position is ().

2. Read out the following numbers, and then omit the mantissa after the tens or hundreds of digits to find the approximate number.

304900 ≈ 5000999 ≈ 80000009 ≈

Read as __________ read as __________ read as __________

340008900≈ 550009000≈ 900099000≈

Read as __________ read as __________ read as __________

3. Write down the numbers below.

5 billion 40 million and 700 writing ()

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