简便计算 第等式计算178×101-17883×102-83×217×23-23×7158+262+138375+219

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  • 178×101-178

    =178×(101-1)

    =178×100

    =17800

    83×102-83×2

    =83×(102-2)

    =83×100

    =8300

    17×23-23×7

    =23×(17-7)

    =23×10

    =230

    158+262+138

    =158+(262+138)

    =158+400

    =558

    375+219+318+225

    =(375+225)+(219+318)

    =600+537

    =1137

    (181+2564)+2719

    =(181+2719)+2564

    =2800+2564

    =5364

    7788-(2187+775)

    =7788-1412

    =6376

    2365-1086-214

    =1279-214

    =1065

    3065-738-1065

    =3065-1065-738

    =1262

    12×25

    =3×4×25

    =3×100

    =300

    75×24

    =3×25×4×6

    =18×100

    =1800

    138×25×4

    =138×100

    =13800

    7300÷25÷4

    =7300÷(25×4)

    7300÷100

    =73

    24×25

    =6×4×25

    =6×100

    =600

    88×125

    =11×8×125

    =11×1000

    =11000

    35×127-35×16-11×35

    =35×(127-16-11)

    =35×100

    =3500

    102×76

    =(100+2)×76

    =100×76+2×76

    =7600+152

    =7752

    75×99+75

    =75×(99+1)

    =75×100

    =7500

    81004÷75

    =8100÷(4×75)

    =8100÷300

    =27

    84×36+64×84

    =84×(36+64)

    =84×100

    =8400

    83÷102-83×2(这道题有误吧)

    25×32×125

    =25×4×8×125

    =100×1000

    =100000

    400+612÷12×4

    =400+51×4

    =400+204

    =196

    118+153÷17×9

    =118+9×9

    =118+81

    =199