The sum of a and B is 71.5. The decimal point of a moves one place to the right, which is equal to B. B = ()

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• 1. The sum of a and B is 27.5. If you move the decimal point of B one place to the right, it will be the same as a. what is a twenty-five B = 27.5 / 11 = 2.5 A = 10 * 2.5 = 25 twenty-seven
• 2. The sum of a and B is 49.5. If you move the decimal point of B one place to the left, it will be equal to A. what is the difference between a and B?
• 3. If the decimal point of a number is moved one place to the right, the number obtained is 2.25 larger than the original number, and the original number is______ ．
• 4. If the decimal point of a number is moved one place to the right, the number obtained is 2.25 larger than the original number, and the original number is______ ．
• 5. After moving the decimal point of a number to the right, the number is 9.9 larger than the original number
• 6. When he read a decimal, he didn't see the decimal point clearly. As a result, he read it as 6.54408, but the original decimal had to read three zeros. The original decimal was too many
• 7. The sum of the big and small numbers is 199.98. If the decimal point of the smaller number is removed and the two numbers are equal, what are the two numbers
• 8. There are two numbers of large and small, and the sum is 34.34. If you move the decimal point of the lower decimal to the right two places, it will be the same as the large number. What are the two numbers
• 9. Use 7, 6, 5, 4, and 3 zeros to form the largest 7 digits of a read-only two zeros Want the best! The faster, the more points!
• 10. Use any four of the five numbers 8, 6, 0, 0, 2 to form the minimum four digits of a read-only zero
• 11. Mingming lost the decimal point when he read a decimal point. As a result, he read it as 34002. The original decimal point read out only one zero, and the original decimal point was zero （ ）
• 12. Minmin lost the decimal point when reading a decimal, and the result was 204008. The original decimal was read only as zero, and the original decimal was zero______ Or______ ．
• 13. Mischievous in reading decimals, the decimal point lost, the result read 6006, the original decimals read out to read three zeros, can you write out the original decimals
• 14. Lili lost the decimal point when she read the decimal, and the result was 6006. Originally, she had to read three zeros. Can you write the decimal
• 15. Use the four numbers of 0055 and the decimal point to form a decimal that does not read 0. What can it be?
• 16. Write out the numbers that meet the requirements with the four numbers of 0, 0, 7 and 6 and the decimal point respectively. (1) one decimal place where a "zero" is not read out: () Use 0, 0, 7, 6 and the decimal point to write the numbers that meet the requirements (1) A decimal that does not read a "zero": () (2) Read only one decimal place of a "zero": () (3) Read out two decimal places of two zeros: ()
• 17. A 3-digit decimal is rounded to 9.45, the minimum is, the maximum is
• 18. The approximate value of 8.3 is obtained by an accurate rounding of two decimal places. What is the minimum and maximum of the two decimal places?
• 19. When the number of decimal places is not specially set in the worksheet, the value of the function round (3.149,2) is______ .
• 20. What is the difference between round function and round between function in excel