Страница 4, ГДЗ по математике за 4 класс к тренажёру Погореловой
Повторение. Числа от 1 до 1 000
\[\small\begin{array}{|l|c|c|c|c|c|c|c|c|} \hline \text{Слагаемое} & 320 & \underset{\textcolor{#808080}{800{-}250}}{\textcolor{#e03131}{\mathbf{550}}} & 160 & 360 & \underset{\textcolor{#808080}{670{-}340}}{\textcolor{#e03131}{\mathbf{330}}} & 270 & 310 & \underset{\textcolor{#808080}{900{-}450}}{\textcolor{#e03131}{\mathbf{450}}} \\ \hline \text{Слагаемое} & 180 & 250 & \underset{\textcolor{#808080}{700{-}160}}{\textcolor{#e03131}{\mathbf{540}}} & 430 & 340 & \underset{\textcolor{#808080}{490{-}270}}{\textcolor{#e03131}{\mathbf{220}}} & 590 & 450 \\ \hline \text{Сумма} & \textcolor{#e03131}{\mathbf{500}} & 800 & 700 & \textcolor{#e03131}{\mathbf{790}} & 670 & 490 & \textcolor{#e03131}{\mathbf{900}} & 900 \\ \hline \end{array}\]
\[\begin{array}{|c|c|c|} \hline \text{Сотни} & \text{Десятки} & \text{Единицы} \\ \hline \textcolor{#e03131}{\mathbf{7}} & \textcolor{#e03131}{\mathbf{8}} & \textcolor{#e03131}{\mathbf{0}} \\ \hline \textcolor{#e03131}{\mathbf{7}} & \textcolor{#e03131}{\mathbf{0}} & \textcolor{#e03131}{\mathbf{8}} \\ \hline \textcolor{#e03131}{\mathbf{6}} & \textcolor{#e03131}{\mathbf{6}} & \textcolor{#e03131}{\mathbf{0}} \\ \hline \textcolor{#e03131}{\mathbf{6}} & \textcolor{#e03131}{\mathbf{5}} & \textcolor{#e03131}{\mathbf{9}} \\ \hline \textcolor{#e03131}{\mathbf{5}} & \textcolor{#e03131}{\mathbf{6}} & \textcolor{#e03131}{\mathbf{1}} \\ \hline \textcolor{#e03131}{\mathbf{5}} & \textcolor{#e03131}{\mathbf{1}} & \textcolor{#e03131}{\mathbf{6}} \\ \hline \textcolor{#e03131}{\mathbf{4}} & \textcolor{#e03131}{\mathbf{7}} & \textcolor{#e03131}{\mathbf{0}} \\ \hline \textcolor{#e03131}{\mathbf{3}} & \textcolor{#e03131}{\mathbf{0}} & \textcolor{#e03131}{\mathbf{2}} \\ \hline \end{array}\]
\[\begin{aligned} 400 + 7 + 40 &= \textcolor{#e03131}{\mathbf{447}} & \qquad 500 + 40 - 1 &= \textcolor{#e03131}{\mathbf{539}} \\ 720 - 20 + 7 &= \textcolor{#e03131}{\mathbf{707}} & \qquad 835 - 5 + 70 &= \textcolor{#e03131}{\mathbf{900}} \\ 354 - 50 + 6 &= \textcolor{#e03131}{\mathbf{310}} & \qquad 282 - 80 + 8 &= \textcolor{#e03131}{\mathbf{210}} \\ 970 - 70 - 1 &= \textcolor{#e03131}{\mathbf{899}} & \qquad 670 - 70 - 1 &= \textcolor{#e03131}{\mathbf{599}} \end{aligned}\]
