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(35907 + 40835) * 4
(24009 − 18960) * 6
(5007 − 4875) : 3
(3250 − 2905) : 5
(6411 * 8 − 40799) * 6
3 * (7535 * 5 + 18948)

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ГДЗ учебник по математике 4 класс Дорофеев. Часть 2 страница 15. Номер №2

(35907 + 40835) * 4 = 76742 * 4 = 306968

\begin{array}{r} \begin{array}{r} + \end{array} \begin{array}{r} 35907 \\ 40835 \end{array} \\ \begin{array}{r} 76742 \end{array} \end{array}

\begin{array}{r} \times \underline{\begin{array}{r} 76742 \\ 4 \end{array}} \\ 306968 \end{array}

(24009 − 18960) * 6 = 5049 * 6 = 30294

\begin{array}{r} \begin{array}{r} - \end{array} \begin{array}{r} 24009 \\ 18960 \end{array} \\ \begin{array}{r} 5049 \end{array} \end{array}

\begin{array}{r} \times \underline{\begin{array}{r} 5049 \\ 6 \end{array}} \\ 30294 \end{array}

(5007 − 4875) : 3 = 132 : 3 = 44

\begin{array}{r} \begin{array}{r} - \end{array} \begin{array}{r} 5007 \\ 4875 \end{array} \\ \begin{array}{r} 132 \end{array} \end{array}

\begin{matrix} \begin{array}{l} \underline{} 132 \\ \underline{12} \\ \underline{} 12 \\ \underline{12} \\ 0 \end{array} & \begin{array}{l} 3 \\ \bar{44} \end{array} \end{matrix}

(3250 − 2905) : 5 = 345 : 5 = 69

\begin{array}{r} \begin{array}{r} - \end{array} \begin{array}{r} 3250 \\ 2905 \end{array} \\ \begin{array}{r} 345 \end{array} \end{array}

\begin{matrix} \begin{array}{l} \underline{} 345 \\ \underline{30} \\ \underline{} 45 \\ \underline{45} \\ 0 \end{array} & \begin{array}{l} 5 \\ \bar{69} \end{array} \end{matrix}

(6411 * 8 − 40799) * 6 = (51288 − 40799) * 6 = 10489 * 6 = 62934

\begin{array}{r} \times \underline{\begin{array}{r} 6411 \\ 8 \end{array}} \\ 51288 \end{array}

\begin{array}{r} \begin{array}{r} - \end{array} \begin{array}{r} 51288 \\ 40799 \end{array} \\ \begin{array}{r} 10489 \end{array} \end{array}

\begin{array}{r} \times \underline{\begin{array}{r} 10489 \\ 6 \end{array}} \\ 62934 \end{array}

3 * (7535 * 5 + 18948) = 3 * (37675 + 18948) = 3 * 56623 = 169869

\begin{array}{r} \times \underline{\begin{array}{r} 7535 \\ 5 \end{array}} \\ 37675 \end{array}

\begin{array}{r} \begin{array}{r} + \end{array} \begin{array}{r} 37675 \\ 18948 \end{array} \\ \begin{array}{r} 56623 \end{array} \end{array}

\begin{array}{r} \times \underline{\begin{array}{r} 56623 \\ 3 \end{array}} \\ 169869 \end{array}

ГДЗ Математика 4 класс Дорофеев, Миракова, Бука, 2015