9.6*89/1993+1103*24/25*1993

RELATED INFORMATIONS

• 1. 96 times 19 / 93 and 3 / 5 times 7 plus 0.6 times 4-3 / 5
• 2. What's the product of two-thirds minus one-quarter difference multiplied by the reciprocal of twenty-one?
• 3. How can five fourths times nine eleven plus thirteen fourths times five eleven be easily calculated? Five minutes, quick! And three quarters by one fifth plus three quarters by two fifths plus 0.75 by three fifths minus three fourths
• 4. 72 * 72 + 72 + 72 * 27 * 72 by simple method
• 5. A simple method of 1.28 * 0.59-0.28 * 0.59
• 6. Simple operation: (1 / 27-1 / 36) △ 1 / 9 7 △ 5 × (5 / 7 + 5 / 28)
• 7. 2.73 × 8.5 + 15 × 27.3 =? Simple calculation~
• 8. Simple operation of 48 × 49 + 48
• 9. How to simplify the calculation from 1 x 1 / 2 plus 2 times 1 / 3 and so on to 49 times 50
• 10. When calculating the following questions, those who can be easily calculated must be easily calculated! (4 / 5 + 1 / 2) × 26 / 27 [5 / 6 - (1 / 2-1 / 3)] × 2 / 50
• 11. How much is 25 / 3 times 12 / 5? How to calculate?
• 12. 7.6 × 201.3 + 4.3 × 201.3-2013 × 0.19 (simple calculation)
• 13. Choose three numbers from 1, 2, 3, 4, 5, 6, 7, 8, 9 and make their sum odd. How many different choices are there? I heard students say: it seems that there is a formula to calculate this, but I don't know what it is So please help me to be complete. If it's good, add more wealth reward value. (it must be understood by children)!
• 14. 1, 2, negative 3, 1, negative 4, 5, 6, negative 7 -3，-4，-7，_______ (2014)
• 15. There is a column of numbers, arranged according to the following rules: 1, 2, 2, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7 The 200th number in this column is______ ．
• 16. Fill in the blanks with the numbers 1,2,3,4,5,6,7,8,9, () - () = () () 1. Each number can only be filled in once and cannot be repeated
• 17. Put the 10 numbers 0,1,2,3,4,5,6,7,8,9 in () (each number can only be used once) () + () = () - () = () * () = () ()
• 18. A ten digit number containing ten digits of 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 is called a "perfect number". If a "perfect number" satisfies the following requirements: (1) it can be divisible by 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12 respectively; (2) its sum with 2004 can be divisible by 13; then what is the smallest of such "perfect numbers"___ ．
• 19. How to do these two questions? Use a simple method to calculate (1): 57.6 × 1.6 + 28.8 × 36.8-14.4 × 80 How to do these two questions? Calculation by simple method (1):57.6×1.6+28.8×36.8-14.4×80 (2) The fourth power of 39 × 37-13 × 3
• 20. Fill in the brackets with 28.7 divided by () = 478.3 zero point zero zero two Urgent! Quick!