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1985 : 5 = 397

1450 x 6 = 8700

1553 : 3 = 517,66

123060 : 30 = 4102

Đáp án + Giải thích các bước giải:

`a,`$\left.\begin{array}{l}895\\\ \ 09\\\quad15\\\qquad3\end{array}\right|\!\!\!\;\!\!\begin{array}{l}\dfrac{\ \ 4\ \ }{\ \ 223\ \ }\\\\\\\end{array}$

`=>895:4=223` (dư `3)`

`----------`

`b,`$\left.\begin{array}{l}973\\\ \ 17\\\quad13\\\qquad1\end{array}\right|\!\!\!\;\!\!\begin{array}{l}\dfrac{\ \ 4\ \ }{\ \ 243\ \ }\\\\\\\end{array}$

`=>973:4=243` (dư `1)`

`----------`

`c,`$\left.\begin{array}{l}6904\\\ \ 09\\\quad30\\\qquad04\end{array}\right|\!\!\!\;\!\!\begin{array}{l}\dfrac{\ \ 6\ \ }{\ \ 1150\ \ }\\\\\\\end{array}$

`=>6904:6=1150` (dư `4)`