\(x+6+6+7=789\)

\(x+\left(6+6+7\right)=789\)

\(x+19=789\)

\(x=789-19\)

\(x=770\)

 x + 6 + 6 + 7 = 789

 x + 19 = 789

 x = 789 - 19

x = 770

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

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

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

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

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

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

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

\(=22\)

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

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

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

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

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

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

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

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

\(=\)\(22\)

\(b)\)\(101\times789+456\times128-789+912\times436\)

\(=\)\(79689+58368-789+397632\)

\(=\)\(534900\)

a) 9642; 8557 (dư 4)

b) 39 929; 29 757 (dư 1)

1 + 2 + 3 + 6 + 7 + 98 + 16 + 789 + 45 + 616

= 3 + 3 + 6 + 7 + 98 + 16 + 789 + 45 + 616

= 6 + 6 + 7 + 98 + 16 + 789 + 45 + 616

= 12 + 7 + 98 + 16 + 789 + 45 + 616

= 19 + 98 + 16 + 789 + 45 + 616

= 117 + 16 + 789 + 45 + 616

= 133 + 789 + 45 + 616

= 922 + 45 + 616

= 967 + 616

= 1583

Chúc bạn may mắn nhìu nha!

1+2+3+6+7+98+16+789+45+616=1583

tổng là 156021

Tính số số hạng:(789-5):2+1=393 số

Tính tổng:(789+5)x393:2=156021

bằng 166021

=1413

= 1413

1413 ban he

=3156

Bò ko ăn cỏ bò ngu

Bạn ko l.i.k.e mình bạn ngu hơn bò

=3156

=3156 nha