a: \(58\cdot32+58\cdot68-800\)
\(=58\left(32+68\right)-800\)
\(=58\cdot100-800\)
=5800-800
=5000
b: \(1202^0+280:\left[55-\left(7-4\right)^3\right]\)
\(=1+280:\left[55-3^3\right]\)
\(=1+280:\left[55-27\right]\)
=1+280:28
=1+10
=11
c: \(\left(96-19-45\right)-\left(55+96-119\right)\)
\(=96-19-45-55-96+119\)
\(=\left(119-19\right)+\left(-45-55\right)+\left(96-96\right)\)
=100-100+0
=0
a, 58.32 + 58.68 - 800
= 58. (32 + 68) - 800
= 58. 100 - 800
= 5800 - 800
= 5000
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b, 12020 + 280 : [55 - (7-4)3 ]
= 1 + 280 : [55 - 33 ]
= 1 + 280 : [55-27]
= 1 + 280 : 28
= 1 + 10 =11
c, (96 - 19 - 45) - (55 + 96 - 119)
= 96 - 19 - 45 - 55 - 96 + 119
= (119 - 19) + (96 - 96) - (55+ 45)
= 100 + 0 - 100
= 0
a: 58⋅32+58⋅68−80058⋅32+58⋅68−800 =58(32+68)−800=58(32+68)−800 =58⋅100−800=58⋅100−800 =5800-800 =5000
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b: 12020+280:[55−(7−4)3]12020+280:[55−(7−4)3] =1+280:[55−33]=1+280:[55−33] =1+280:[55−27]=1+280:[55−27] =1+280:28 =1+10 =11 |
c: (96−19−45)−(55+96−119)(96−19−45)−(55+96−119) =96−19−45−55−96+119=96−19−45−55−96+119 =(119−19)+(−45−55)+(96−96)=(119−19)+(−45−55)+(96−96) =100-100+0 =0 |
