First 23 * (- 5) - (- 3) / 123 score 8 second - 7 * (- 3) * (- 0.5) + (- 12) * (- 2.6)

RELATED INFORMATIONS

• 1. Fill in the numbers according to the rules (18,17), (14,10), (10,1), (?, 5), and one more question (1,3) (5,9) (7,13) (9,?)
• 2. Please fill in 3, 8, 10, 18, 17, 28, (), (), (), ()
• 3. 1,-1,-2,3,-5,-8,13,（ ）,（ ）
• 4. 3, 9, 18, 30?
• 5. -3,6, - 9,12, - 15,18, - 21. Expressed by the algebraic formula containing n
• 6. 3, 9, 18, 30, 45, 63 are expressed by the algebraic formula containing X
• 7. If the values of algebraic formula 12-3 (9-y) and algebraic formula 5 (y-4) are equal, then y = 0___ ．
• 8. It is expressed by the algebraic formula containing N: 1,2,3,4,5 ；1,3,5,7,9
• 9. Carefully observe the arrangement rule of the sequence, and choose the correct one to make it conform to the arrangement rule of the original sequence: 4,38,18,10,4, () A：2 B：1 C：3
• 10. Please find the sequence 18,34,55,81 , 1 / 2 [(n-3) (5N + 12)] + 18 Please find the sequence 18,34,55,81 , 1 / 2 [(n-3) (5N + 12)] + 18. The rule of this sequence is that the difference between them is an arithmetic sequence,
• 11. 1×12÷323÷1×4×2×2×0= 2×3×4×5×6×7×8×9×123÷6=
• 12. 11 / 12 + 3 / 7 1 + 3 / 12 1 + (5 / 7 6-0.123)
• 13. (1+12+123+1234+.+123.56789)÷4
• 14. 1+12+123+1234=? 1+12+123+1234=?
• 15. What is the decimal expression of 123-7 (123 out of seven)?
• 16. ｛100+123｝/12
• 17. How much is 123 out of 1000?
• 18. 4 (x-0.123) + 7 (y + 3.45) = 1 5 (x-0.123) - (y + 3.45) = 11 solving binary linear equations by substitution method
• 19. To solve the equation 75 + x = 123, both sides of the equation should be () 1. Add 48 2. Subtract 75 3. Add 75
• 20. Solve the equation 2x (X-2) = 54, half X-11 = 29 + Half x 72 - (3-x) = 123