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16/3+0,357×(y-5/3)=3/4:9/4+5

bạn hỏi để câu L-I-K-E ak

\(11\div\left\{\frac{7}{8}-3\cdot\left[0,25\div\left(1\frac{1}{3}+2\cdot\frac{1}{3}\right)\right]\right\}\)

\(=11\div\left\{\frac{7}{8}-3\cdot\left[\frac{1}{4}\div\left(\frac{4}{3}+2\cdot\frac{1}{3}\right)\right]\right\}\)

\(=11\div\left\{\frac{7}{8}-3\cdot\left[\frac{1}{4}\div\left(\frac{4}{3}+\frac{2}{3}\right)\right]\right\}\)

\(=11\div\left\{\frac{7}{8}-3\cdot\left[\frac{1}{4}\div2\right]\right\}\)

\(=11\div\left\{\frac{7}{8}-3\cdot\frac{1}{8}\right\}\)

\(=11\div\left\{\frac{7}{8}-\frac{3}{8}\right\}\)

\(=11\div\frac{1}{2}\)

\(=22\)

b) 101*789 + 456*128 - 789 + 912*436

= 789*100 + 456*128 + 912*436

= 789*100 + 912*64 + 912*436

= 789*100 + 912*500

= 100*(789 + 912*5)

= 100*5349

= 534900

b)\(\left(2016.1017+2017.2018\right).\left(1+\frac{1}{2}:\frac{3}{2}-\frac{4}{3}\right)\)

\(\left(2016.2017+2017.2018\right)\left(1+\frac{1}{3}-\frac{4}{3}\right)\)

\(\left(2016.2017+2017.2018\right).\left(\frac{4}{3}-\frac{4}{3}\right)\)

\(\left(2016.2017+2017.2018\right).0\)

\(=0\)

a) \(1001.789+456.128.128-789+912.436\)

\(=\left(1001.789-789\right)+\left(456.2.64.128+912.436\right)\)

\(=789.1000+912.4\left(2048+109\right)\)

\(=789000+912.4.2157\)

\(=8657736\)

a, 512*(2-128)-128*(-512)

   = 512*2 - 512*128 -128*(-512)

   =512*2-512*128-(-128)*512

   = 512*(2-128+128)

   = 512*2

   =1024

   b, 2155-(174+2155)+(-68+174)

     =2155-174-2155+(-68)+174

     = (2155-2155)+[(-174)+174]+(-68)

     =0+0+(-68)

      =-68

    c,-78+11*(97-99)

       =-78+11*(-2)

        =-78+(-22)

       =-100

    d, |+426|+|-345|+|+456|+|-789|

      = 426+345+456+789

      =(426+345)+(456+789)

      =771+1245

      =2016

789 x 456 x 123 - ( 789 x 456 x123)

= Vì 2 phép tính trên giống nhau nên ra kết quả giống nhau. Vậy 2 kết quả giống nhau trừ với nhau thì sẽ bằng 0.

Đáp số là 0

= 799 + 456 x 1 + 456 x 999

= 799 + 456 x ( 1 + 999)

=799 + 456 x 1000

= 799 + 456000

=456799

~ k cho mk nha, chúc bn học tốt :(

Lời giải:

$=(123+123)+(456+456)+(789+789)$

$=2\times 123+2\times 456+2\times 789$

$=2\times (123+456+789)=2\times 1368=2736$

Lời giải:

$=(123+123)+(456+456)+(789+789)$

$=2\times 123+2\times 456+2\times 789$

$=2\times (123+456+789)=2\times 1368=2736$