705 − 296 * 2;
(705 − 296) * 2;
(365 + 175) : 5;
365 + 175 : 5;
(904 − 268) : 4;
904 − 268 : 4.

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Математика 4 класс Моро. Часть 1. Нумерация. Номер №123

705 − 296 * 2 = 705 − 592 = 113

\begin{array}{r} \times \underline{\begin{array}{r} 296 \\ 2 \end{array}} \\ 592 \end{array}

\begin{array}{r} \begin{array}{r} - \end{array} \begin{array}{r} 705 \\ 592 \end{array} \\ \begin{array}{r} 113 \end{array} \end{array}

(705 − 296) * 2 = 409 * 2 = 818

\begin{array}{r} \begin{array}{r} - \end{array} \begin{array}{r} 705 \\ 296 \end{array} \\ \begin{array}{r} 409 \end{array} \end{array}

\begin{array}{r} \times \underline{\begin{array}{r} 409 \\ 2 \end{array}} \\ 818 \end{array}

(365 + 175) : 5 = 540 : 5 = 108

\begin{array}{r} \begin{array}{r} + \end{array} \begin{array}{r} 365 \\ 175 \end{array} \\ \begin{array}{r} 540 \end{array} \end{array}

\begin{matrix} \begin{array}{l} \underline{} 540 \\ \underline{5} \\ \underline{} 4 \\ \underline{0} \\ \underline{} 40 \\ \underline{40} \\ 0 \end{array} & \begin{array}{l} 5 \\ \bar{108} \end{array} \end{matrix}

365 + 175 : 5 = 365 + 35 = 400

\begin{matrix} \begin{array}{l} \underline{} 175 \\ \underline{15} \\ \underline{} 25 \\ \underline{25} \\ 0 \end{array} & \begin{array}{l} 5 \\ \bar{35} \end{array} \end{matrix}

\begin{array}{r} \begin{array}{r} + \end{array} \begin{array}{r} 365 \\ 35 \end{array} \\ \begin{array}{r} 400 \end{array} \end{array}

(904 − 268) : 4 = 636 : 4 = 159

\begin{array}{r} \begin{array}{r} - \end{array} \begin{array}{r} 904 \\ 268 \end{array} \\ \begin{array}{r} 636 \end{array} \end{array}

\begin{matrix} \begin{array}{l} \underline{} 636 \\ \underline{4} \\ \underline{} 23 \\ \underline{20} \\ \underline{} 36 \\ \underline{36} \\ 0 \end{array} & \begin{array}{l} 4 \\ \bar{159} \end{array} \end{matrix}

904 − 268 : 4 = 904 − 67 = 837

\begin{matrix} \begin{array}{l} \underline{} 268 \\ \underline{24} \\ \underline{} 28 \\ \underline{28} \\ 0 \end{array} & \begin{array}{l} 4 \\ \bar{67} \end{array} \end{matrix}

\begin{array}{r} \begin{array}{r} - \end{array} \begin{array}{r} 904 \\ 67 \end{array} \\ \begin{array}{r} 837 \end{array} \end{array}

ГДЗ Математика 4 класс Моро, Бантова часть 1, 2