標題:
中一數學題~ 快 ~ 急 40點
發問:
要埋步驟 ( ^ =除)1. (-2)(-6) __________ (-5)(+4)(-9) 2. (-8)^(負3分之1)x(正四分之1)^(-6)3. (-8)x2^64^(-1)4. (-8)^(-2)+(+4)x(-6)5. (-7)x[8-(-7)] _____________ (+4-18)x(-5)6. (+2)(+6)7. (+10)(+15) 8. (+7)(-9)9. ... 顯示更多 要埋步驟 ( ^ =除) 1. (-2)(-6) __________ (-5)(+4)(-9) 2. (-8)^(負3分之1)x(正四分之1)^(-6) 3. (-8)x2^64^(-1) 4. (-8)^(-2)+(+4)x(-6) 5. (-7)x[8-(-7)] _____________ (+4-18)x(-5) 6. (+2)(+6) 7. (+10)(+15) 8. (+7)(-9) 9. (-5)(+20) 10. (-8)(-6) 11. (-3)(-12) 12. (+35)^(+5) 13. (+48)^(-2) 14. (-32)^(+8) 15. (-24)^(-3) 16. +126 ________ -9 17. -242 _______ -11
1. (-2)(-6) __________ (-5)(+4)(-9) =12/180 1/15 2. (-8)^(負3分之1)x(正四分之1)^(-6) =24 x -1/24 =-1 3. (-8)x2^64^(-1) =-16^64^(-1) =1/4 4. (-8)^(-2)+(+4)x(-6) =4+(-24) =-20 5. (-7)x[8-(-7)] _____________ (+4-18)x(-5) =-105/70 =-3/2 6. (+2)(+6) =12 7. (+10)(+15) =150 8. (+7)(-9) =-63 9. (-5)(+20) =-100 10. (-8)(-6) =48 11. (-3)(-12) =36 12. (+35)^(+5) =7 13. (+48)^(-2) =-24 14. (-32)^(+8) =-4 15. (-24)^(-3) =8 16. +126 ________ -9 =-14 17. -242 _______ -11 =22
其他解答:
哇~好似好勁甘囉~|||||計之前....我想話你知，^ 係次方，唔係除.... 1. (-2)(-6) / (-5)(+4)(-9) = 12 / 180 = 1 / 15 2. (-8)/(負3分之1)x(正四分之1)/(-6) = 24 x -1 / 24 = -1 3. (-8)x2 / 64 / (-1) = 1 / 4 4. (-8) / (-2)+(+4)x(-6) = 4 + (-24) = - 20 5. (-7)x[8-(-7)] / (+4-18)x(-5) = (-7)x 15 / (-14)x(-5) = -105 / 70 = -1 又 1 / 2 6. (+2)(+6) = 12 7. (+10)(+15) = 150 8. (+7)(-9) = -63 9. (-5)(+20) = -100 10. (-8)(-6) = 48 11. (-3)(-12) = 36 12. (+35)/(+5) = 7 13. (+48)/(-2) = -24 14. (-32)/(+8) = -4 15. (-24)/(-3) = 8 16. +126 / -9 = -14 17. -242 / -11 = 22|||||1. (-2)(-6) __________ (-5)(+4)(-9) = -2x-6 _________ -5x+4x-9 = +12 _____ -20x-9 = +12 _____ +180 = +0.666666666666666666666666....... 2. (-8)^(負3分之1)x(正四分之1)^(-6) = -8x負1分之3x正四分之1x負1分之6 = -1 3. (-8)x2^64^(-1) = -8x2^64^-1 = -16^64^-1 = -0.25^-1 = +0.25 4. (-8)^(-2)+(+4)x(-6) = -8^-2++4x-6 = +4+-24 = +4-24 = -20 5. (-7)x[8-(-7)] ___________ (+4-18)x(-5) = (-7)x[8+7] ___________ +4-18x(-5) = -7x15 ______ -14x-5 = -105 ______ +70 = -1.5 6. (+2)(+6) = +2x+6 = +12 7. (+10)(+15) = +10x+15 = +150 8. (+7)(-9) = +7x-9 = -63 9. (-5)(+20) = -5x+20 = -100 10. (-8)(-6) = -8x-6 = +48 11. (-3)(-12) = -3x-12 = +36 12. (+35)^(+5) = +35^+5 = +7 13. (+48)^(-2) = +48^-2 = -24 14. (-32)^(+8) = -32^+8 = -4 15. (-24)^(-3) = -24^-3 = +8 16. +126 ________ -9 = -14 17. -242 _______ -11 = + 22
中一數學題~ 快 ~ 急 40點
發問:
要埋步驟 ( ^ =除)1. (-2)(-6) __________ (-5)(+4)(-9) 2. (-8)^(負3分之1)x(正四分之1)^(-6)3. (-8)x2^64^(-1)4. (-8)^(-2)+(+4)x(-6)5. (-7)x[8-(-7)] _____________ (+4-18)x(-5)6. (+2)(+6)7. (+10)(+15) 8. (+7)(-9)9. ... 顯示更多 要埋步驟 ( ^ =除) 1. (-2)(-6) __________ (-5)(+4)(-9) 2. (-8)^(負3分之1)x(正四分之1)^(-6) 3. (-8)x2^64^(-1) 4. (-8)^(-2)+(+4)x(-6) 5. (-7)x[8-(-7)] _____________ (+4-18)x(-5) 6. (+2)(+6) 7. (+10)(+15) 8. (+7)(-9) 9. (-5)(+20) 10. (-8)(-6) 11. (-3)(-12) 12. (+35)^(+5) 13. (+48)^(-2) 14. (-32)^(+8) 15. (-24)^(-3) 16. +126 ________ -9 17. -242 _______ -11
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最佳解答:1. (-2)(-6) __________ (-5)(+4)(-9) =12/180 1/15 2. (-8)^(負3分之1)x(正四分之1)^(-6) =24 x -1/24 =-1 3. (-8)x2^64^(-1) =-16^64^(-1) =1/4 4. (-8)^(-2)+(+4)x(-6) =4+(-24) =-20 5. (-7)x[8-(-7)] _____________ (+4-18)x(-5) =-105/70 =-3/2 6. (+2)(+6) =12 7. (+10)(+15) =150 8. (+7)(-9) =-63 9. (-5)(+20) =-100 10. (-8)(-6) =48 11. (-3)(-12) =36 12. (+35)^(+5) =7 13. (+48)^(-2) =-24 14. (-32)^(+8) =-4 15. (-24)^(-3) =8 16. +126 ________ -9 =-14 17. -242 _______ -11 =22
其他解答:
哇~好似好勁甘囉~|||||計之前....我想話你知，^ 係次方，唔係除.... 1. (-2)(-6) / (-5)(+4)(-9) = 12 / 180 = 1 / 15 2. (-8)/(負3分之1)x(正四分之1)/(-6) = 24 x -1 / 24 = -1 3. (-8)x2 / 64 / (-1) = 1 / 4 4. (-8) / (-2)+(+4)x(-6) = 4 + (-24) = - 20 5. (-7)x[8-(-7)] / (+4-18)x(-5) = (-7)x 15 / (-14)x(-5) = -105 / 70 = -1 又 1 / 2 6. (+2)(+6) = 12 7. (+10)(+15) = 150 8. (+7)(-9) = -63 9. (-5)(+20) = -100 10. (-8)(-6) = 48 11. (-3)(-12) = 36 12. (+35)/(+5) = 7 13. (+48)/(-2) = -24 14. (-32)/(+8) = -4 15. (-24)/(-3) = 8 16. +126 / -9 = -14 17. -242 / -11 = 22|||||1. (-2)(-6) __________ (-5)(+4)(-9) = -2x-6 _________ -5x+4x-9 = +12 _____ -20x-9 = +12 _____ +180 = +0.666666666666666666666666....... 2. (-8)^(負3分之1)x(正四分之1)^(-6) = -8x負1分之3x正四分之1x負1分之6 = -1 3. (-8)x2^64^(-1) = -8x2^64^-1 = -16^64^-1 = -0.25^-1 = +0.25 4. (-8)^(-2)+(+4)x(-6) = -8^-2++4x-6 = +4+-24 = +4-24 = -20 5. (-7)x[8-(-7)] ___________ (+4-18)x(-5) = (-7)x[8+7] ___________ +4-18x(-5) = -7x15 ______ -14x-5 = -105 ______ +70 = -1.5 6. (+2)(+6) = +2x+6 = +12 7. (+10)(+15) = +10x+15 = +150 8. (+7)(-9) = +7x-9 = -63 9. (-5)(+20) = -5x+20 = -100 10. (-8)(-6) = -8x-6 = +48 11. (-3)(-12) = -3x-12 = +36 12. (+35)^(+5) = +35^+5 = +7 13. (+48)^(-2) = +48^-2 = -24 14. (-32)^(+8) = -32^+8 = -4 15. (-24)^(-3) = -24^-3 = +8 16. +126 ________ -9 = -14 17. -242 _______ -11 = + 22
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