简便计算,59×101=? 8×0.4×12.5×2.5=?90×81/89=?
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发布时间:2022-04-29 18:15
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热心网友
时间:2023-10-29 23:16
59×101=59×100+59=5959
8×0.4×12.5×2.5=(8×12.5)×(0.4×2.5)=100×1=100
90×81÷89(这道题就是通用方法)
热心网友
时间:2023-10-29 23:16
59×101=59×100+59=5959
8×0.4×12.5×2.5=(8×12.5)×(0.4×2.5)=100×1=100
90×81÷89(这道题就是通用方法)
热心网友
时间:2023-10-29 23:16
59×101=59×100+59=5959
8×0.4×12.5×2.5
=8×12.5×0.4×2.5
=100×1
=100
90×81÷89=
=81×90/89
=81x(1+1/89)
=81+81/89
热心网友
时间:2023-10-29 23:16
59×101=59×100+59=5959
8×0.4×12.5×2.5
=8×12.5×0.4×2.5
=100×1
=100
90×81÷89=
=81×90/89
=81x(1+1/89)
=81+81/89
热心网友
时间:2023-10-29 23:17
59x101=59x(100+1)=5900+59=5959
8x0.4x12.5x2.5=(8x12.5)x(0.4x2.5)=100x1=100
90x81/89=(89+1)x81/89=89x81/89+1x81/89=81+81/89
热心网友
时间:2023-10-29 23:17
59x101=59x(100+1)=5900+59=5959
8x0.4x12.5x2.5=(8x12.5)x(0.4x2.5)=100x1=100
90x81/89=(89+1)x81/89=89x81/89+1x81/89=81+81/89
热心网友
时间:2023-10-29 23:16
59×101=59×100+59=5959
8×0.4×12.5×2.5=(8×12.5)×(0.4×2.5)=100×1=100
90×81÷89(这道题就是通用方法)
热心网友
时间:2023-10-29 23:16
59×101=59×100+59=5959
8×0.4×12.5×2.5
=8×12.5×0.4×2.5
=100×1
=100
90×81÷89=
=81×90/89
=81x(1+1/89)
=81+81/89
热心网友
时间:2023-10-29 23:17
59x101=59x(100+1)=5900+59=5959
8x0.4x12.5x2.5=(8x12.5)x(0.4x2.5)=100x1=100
90x81/89=(89+1)x81/89=89x81/89+1x81/89=81+81/89
热心网友
时间:2023-10-29 23:16
59×101=59×100+59=5959
8×0.4×12.5×2.5=(8×12.5)×(0.4×2.5)=100×1=100
90×81÷89(这道题就是通用方法)
热心网友
时间:2023-10-29 23:16
59×101=59×100+59=5959
8×0.4×12.5×2.5
=8×12.5×0.4×2.5
=100×1
=100
90×81÷89=
=81×90/89
=81x(1+1/89)
=81+81/89
热心网友
时间:2023-10-29 23:17
59x101=59x(100+1)=5900+59=5959
8x0.4x12.5x2.5=(8x12.5)x(0.4x2.5)=100x1=100
90x81/89=(89+1)x81/89=89x81/89+1x81/89=81+81/89
热心网友
时间:2023-10-29 23:16
59×101=59×100+59=5959
8×0.4×12.5×2.5=(8×12.5)×(0.4×2.5)=100×1=100
90×81÷89(这道题就是通用方法)
热心网友
时间:2023-10-29 23:16
59×101=59×100+59=5959
8×0.4×12.5×2.5
=8×12.5×0.4×2.5
=100×1
=100
90×81÷89=
=81×90/89
=81x(1+1/89)
=81+81/89
热心网友
时间:2023-10-29 23:17
59x101=59x(100+1)=5900+59=5959
8x0.4x12.5x2.5=(8x12.5)x(0.4x2.5)=100x1=100
90x81/89=(89+1)x81/89=89x81/89+1x81/89=81+81/89