(-0.25)乘(-1又5/9)乘(-36) 还有一道:-2/3 乘(-1/2)乘 6又2/3 乘 (1又4/5)
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(-0.25)乘(-1又5/9)乘(-36) 还有一道:-2/3 乘(-1/2)乘 6又2/3 乘 (1又4/5)
(-0.25)乘(-1又5/9)乘(-36)
还有一道:-2/3 乘(-1/2)乘 6又2/3 乘 (1又4/5)
(-0.25)乘(-1又5/9)乘(-36) 还有一道:-2/3 乘(-1/2)乘 6又2/3 乘 (1又4/5)
①
(-0.25)×(-1又5/9)×(-36)
=(-1/4)×[-(9+5)/9]×(-36)
=(-1/4)×(-14/9)×(-36)
=(-1/4)×14×4
=-14
②
-2/3×(-1/2)×(6又2/3)×(1又4/5)
=1/3×[(3×6+2)/3]×[(5+4)/5]
=1/3×20/3×9/5
=20/9×9/5
=4
(-0.25)乘(-1又5/9)乘(-36)
=-1/4×(-36)×(-14/9)
=9×(-14/9)
=-14
-2/3 乘(-1/2)乘 6又2/3 乘 (1又4/5)
=-1/3×20/3×9/5
=-20/5
=-4
1、原式=(-1/4)×(-14/9)×(-36)
=-[(1/4)×36×(14/9)]
=-9×(14/9)
=-14
2、原式=(-2/3)×(-1/2)×(20/3)×(9/5)
=(1/2)×(20/3)×(9/5)
=(10/3)×(9/5)
=6
(-0.25)乘(-1又5/9)乘(-36)
= (-0.25)乘(-1又5/9)乘(-4) 乘(+9)
= (-0.25)乘(-4)乘(-1又5/9) 乘(+9)
= 1 乘(-1又5/9) 乘 9
= (-1) 乘(1又5/9) 乘 9
= (-1) 乘(1 + 5/9) 乘 9
= (-1) 乘(9 + 5)
= -14
(-...
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(-0.25)乘(-1又5/9)乘(-36)
= (-0.25)乘(-1又5/9)乘(-4) 乘(+9)
= (-0.25)乘(-4)乘(-1又5/9) 乘(+9)
= 1 乘(-1又5/9) 乘 9
= (-1) 乘(1又5/9) 乘 9
= (-1) 乘(1 + 5/9) 乘 9
= (-1) 乘(9 + 5)
= -14
(-2/3) 乘(-1/2)乘 (6又2/3) 乘 (1又4/5)
= (-1/3) 乘 (6又2/3) 乘 (1又4/5)
= (-1/3) * (6+2/3) * (1+4/5)
= (-1/3) * (20/3) * (9/5)
= (-20/9) * (9/5)
= (-20/5)
= -4
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(-0.25)乘(-1又5/9)乘(-36)
= -0.25 × -36 × --14/9
= 9 × (-14/9)
= -14
-2/3 乘(-1/2)乘 6又2/3 乘 (1又4/5)
= 2/3 × 1/2 × 20/3 × 9/5
= 4
秋风燕燕为您答题 O(∩_∩)O
有什么不明白可以对该题继续追问
如果满意,...
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(-0.25)乘(-1又5/9)乘(-36)
= -0.25 × -36 × --14/9
= 9 × (-14/9)
= -14
-2/3 乘(-1/2)乘 6又2/3 乘 (1又4/5)
= 2/3 × 1/2 × 20/3 × 9/5
= 4
秋风燕燕为您答题 O(∩_∩)O
有什么不明白可以对该题继续追问
如果满意,请及时选为满意答案,谢谢
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