Toán lớp 5 Cánh diều Bài 35: Chia một số thập phân cho một số thập phân

\({\begin{array}{l}\begin{array}{*{20}{c}}{3_{\not\,,} 6}\\ \underline{3\ \ 6}\end{array}\ \ \left| \begin{array}{l}\underline { {1_{\not\,,}8}\ \ } \\ \text{2}\end{array} \right. \\ \ \ \ \ 0 \end{array} }\)

Thử lại:

2 x 1,8 = 3,6

\({ \begin{array}{l}\begin{array}{*{20}{c}}{12_{\not\,,} 5}\\ \underline{12\ \ 5}\end{array}\ \ \left| \begin{array}{l}\underline { {2_{\not\,,}5}\ \ } \\ \text{5}\end{array} \right. \\ \ \ \ \ \ \ 0 \end{array} }\)

Thử lại:

5 x 2,5 = 12,5

\({ \begin{array}{l}\begin{array}{*{20}{c}}{16_{\not\,,} 8}\\ \underline{16\ \ 8}\end{array}\ \ \left| \begin{array}{l}\underline { {5_{\not\,,}6}\ \ } \\ \text{3}\end{array} \right. \\ \ \ \ \ \ \ 0 \end{array}}\)

Thử lại:

3 x 5,6 = 16,8

\({ \begin{array}{l}\begin{array}{*{20}{c}}{{1_{\not\,,} 1,1}}\\ \underline{\ \ \ \ 9\ } \ \ \ \end{array}\ \ \left| \begin{array}{l}\underline { {0_{\not\,,}3}\ \ } \\ \text{3,7}\end{array} \right. \\ \ \ \ \ 2 \ \ 1 \\ \ \underline{\ \ \ 2 \ \ 1 } \\ \ \ \ \ \ \ \ \ 0 \end{array} }\)

Thử lại:

3,7 x 0,3= 1,11

\({ \begin{array}{l}\begin{array}{*{20}{c}}{{3_{\not\,,} 2,5\ \ }}\\ \underline{ \ \ \ \ 0 \ }\ \ \ \ \ \end{array}\ \left| \begin{array}{l}\underline { {6_{\not\,,}5}\ \ } \\ \text{0,5}\end{array} \right. \\ 3 \ \ 2\ \ 5 \\ \underline{ 3\ \ 2\ \ 5 } \\ \ \ \ \ \ \ \ \ 0 \end{array} }\)

Thử lại:

0,5 x 6,5 = 3,25

\({ \begin{array}{l}\begin{array}{*{20}{c}}{{8_{\not\,,} 0,4\ \ }}\\ \underline{ 6 \ \ 0 \ }\ \ \ \ \ \end{array}\ \left| \begin{array}{l}\underline { {6_{\not\,,}7}\ \ } \\ \text{1,2}\end{array} \right. \\ 1 \ \ 3\ \ 4 \\ \underline{ 1\ \ 3\ \ 4 } \\ \ \ \ \ \ \ \ \ 0 \end{array}}\)

Thử lại:

1,2 x 6,7 = 8,04