ГДЗ задачник по математике 5 класс Е.А.Бунимович

авторы: Е.А.Бунимович.

издательство: "Просвещение"

Раздел:

Номер №104

136 \overset{2}{*} (668 \overset{1}{-} 588) \overset{4}{-} 404 \overset{3}{*} 25 = 136 * 80 - 404 * 25 = 10880 - 10100 = 780

\begin{array}{r} \begin{array}{r} - \end{array} \begin{array}{r} 668 \\ 588 \end{array} \\ \begin{array}{r} 421 \end{array} \end{array}

;
2)

;
3)

\begin{array}{r} \times \underline{\begin{array}{r} 404 \\ 25 \end{array}} \\ 2020 \\ 808 \\ \bar{10100} \end{array}

;
4)

\begin{array}{r} \begin{array}{r} - \end{array} \begin{array}{r} 10880 \\ 10100 \end{array} \\ \begin{array}{r} 780 \end{array} \end{array}

1540 \overset{1}{:} 11 \overset{3}{+} 1890 \overset{2}{:} 9 \overset{4}{+} 982 = 140 + 210 + 982 = 350 + 982 = 1332

\begin{matrix} \begin{array}{l} \underline{} 1540 \\ \underline{11} \\ \underline{} 44 \\ \underline{44} \\ \underline{} 0 \\ \underline{0} \\ 0 \end{array} & \begin{array}{l} 11 \\ \bar{140} \end{array} \end{matrix}

;
2)

\begin{matrix} \begin{array}{l} \underline{} 1890 \\ \underline{18} \\ \underline{} 9 \\ \underline{9} \\ \underline{} 0 \\ \underline{0} \\ 0 \end{array} & \begin{array}{l} 9 \\ \bar{210} \end{array} \end{matrix}

;
3)

\begin{array}{r} \begin{array}{r} + \end{array} \begin{array}{r} 140 \\ 210 \end{array} \\ \begin{array}{r} 350 \end{array} \end{array}

;
4)

\begin{array}{r} \begin{array}{r} + \end{array} \begin{array}{r} 350 \\ 982 \end{array} \\ \begin{array}{r} 1332 \end{array} \end{array}

1953 \overset{4}{+} (17432 \overset{2}{-} 56 \overset{1}{*} 223) \overset{3}{:} 16 = 1953 + (17432 - 12488) : 16 = 1953 + 4944 : 16 = 1953 + 309 = 2262

\begin{array}{r} \times \underline{\begin{array}{r} 223 \\ 56 \end{array}} \\ 1338 \\ 1115 \\ \bar{12488} \end{array}

;
2)

\begin{array}{r} \begin{array}{r} - \end{array} \begin{array}{r} 17432 \\ 12488 \end{array} \\ \begin{array}{r} 4944 \end{array} \end{array}

;
3)

\begin{matrix} \begin{array}{l} \underline{} 4944 \\ \underline{48} \\ \underline{} 14 \\ \underline{0} \\ \underline{} 144 \\ \underline{144} \\ 0 \end{array} & \begin{array}{l} 16 \\ \bar{309} \end{array} \end{matrix}

;
4)

\begin{array}{r} \begin{array}{r} + \end{array} \begin{array}{r} 1953 \\ 309 \end{array} \\ \begin{array}{r} 2262 \end{array} \end{array}

6010 \overset{4}{-} (130 \overset{1}{*} 52 \overset{3}{-} 68890 \overset{2}{:} 83) = 6010 - (6760 - 830) = 6010 - 5930 = 80

;
2)

\begin{matrix} \begin{array}{l} \underline{} 68890 \\ \underline{664} \\ \underline{} 249 \\ \underline{249} \\ \underline{} 0 \\ \underline{0} \\ 0 \end{array} & \begin{array}{l} 83 \\ \bar{830} \end{array} \end{matrix}

;
3)

\begin{array}{r} \begin{array}{r} - \end{array} \begin{array}{r} 6760 \\ 830 \end{array} \\ \begin{array}{r} 5930 \end{array} \end{array}

;
4)

\begin{array}{r} \begin{array}{r} - \end{array} \begin{array}{r} 6010 \\ 5930 \end{array} \\ \begin{array}{r} 80 \end{array} \end{array}