Câu hỏi của Askaban Trần

Question

(-50+19+143)-(-79+25+48)(-25)(75-45)-75(45-25)(-37-17).(-9)+35.(-9-11)(187-23)-(20-180)512.(2-128)-128.(-512)17.(-25)+25.21Giải rõ ra nha ! Mình cần gấp !

Mai Nhật Lệ · Accepted Answer

$=\left(-50+19+143\right)-\left(-79+25+48\right)$$=-50+19+143+79-25-48$$=118$Câu trả lời: $=\left(-50+19+143\right)-\left(-79+25+48\right)$$=-50+19+143+79-25-48$$=118$

Mai Nhật Lệ · Answer

$\left(-25\right)\left(75-45\right)-75\left(45-25\right)$$\left(-25\right).30-75.20$$=-2250$$\left(-37-17\right).\left(-9\right)+35\left(-9-11\right)$$-54.\left(-9\right)+35.\left(-20\right)$$-763$Đánh mỏi tay quáCâu trả lời: $\left(-25\right)\left(75-45\right)-75\left(45-25\right)$$\left(-25\right).30-75.20$$=-2250$$\left(-37-17\right).\left(-9\right)+35\left(-9-11\right)$$-54.\left(-9\right)+35.\left(-20\right)$$-763$Đánh mỏi tay quá

1. 3.(-4)2 + 2.(-5) – 20	2. (- 54 ) + (+ 39) - ( +10) + ( - 85)
3. 5.(-3)2 –14.(-8)+(-40)	4. (- 24 ) + (- 30 ) - ( - 40)
5. 31 – [26 – (209 + 35)]	6. 29-(-25) + ( + 40)
7. 231+26-(209+26)	8. 215 + (-38) – (- 58) + 90 – 85
9. 21 + 22 + 23 + 24 – 11 – 12 – 13 – 14	10. 215 +(-38) – (-58) –15
11. (-12).46 – 12.54	12. 3784 + 23 – 3785 – 15
13. (-8).25.(-2). 4. (-5).125	14. 19.25 + 9.95 + 19.30
15. (-50 +19 +143) – (-79 + 25 + 48)	16. (-25)(75 – 45) – 75(45 – 25)
17. (-37 – 17). (-9) + 35. (-9 – 11)	18. (187 -23) – (20 – 180)
19. 512.(2 – 128) – 128.( - 512)	20. 17.(-25) + 25.21
21. 160 : {\|-17\| + [32.5 – (14 + 211: 28)]}	22. 16.(38 – 2) – 38(16 – 1)
23. \| -6 \| + (-7) +\| -4 \| +(-3)	24. 26.(- 125) – 125.( - 36)
25. 56 : 53 – 50 . 51 . 52	26. 125.( -24) + 24.225
27. 21.135 + 21.65 – 200	28. 42+ (–19)+ 58 – (–19)
29. 100 : {31 – [24 : (18 – 7.2)]}	30. 23 . 5 – 32 . 4 + 4.6

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