Страница 55, ГДЗ по математике за 4 класс к тренажёру Конновой
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\[283 \mathbin{\overset{\textcolor{#1a7f37}{1}}{\vphantom{+}\cdot}} 608 \overset{\textcolor{#1a7f37}{3}}{+} 453\,420 \mathrel{\overset{\textcolor{#1a7f37}{2}}{\vphantom{+}{:}}} 18 \overset{\textcolor{#1a7f37}{4}}{-} 129\,025 = \boxed{\smash[b]{\underset{\hspace{6em}}{\textcolor{#e03131}{\mathbf{68\,229}}}}}\] \[\begin{array}{l} \textcolor{#1a7f37}{\mathbf{1)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}283 \\ \smash{\raisebox{0.62em}{$\times$}} & \vphantom{\overset{\bullet}{0}}608 \\ \hline & 2264 \\ \smash{\raisebox{0.62em}{$+$}} & 1698\phantom{00} \\ \hline & \textcolor{#e03131}{\mathbf{1}\kern-0.075em\mathbf{7}\kern-0.075em\mathbf{2}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{6}\kern-0.075em\mathbf{4}\kern-0.075em} \\ & \vphantom{\underline{0}} \\ & \vphantom{\underline{0}} \\ & \vphantom{\underline{0}} \\ & \vphantom{\underline{0}} \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{2)}} \\ \begin{array}{l|l} \mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}\overset{\mathclap{\textcolor{#1c7ed6}{\frown}}}{45}3420 & \underline{\,18\phantom{000}\,} \\ \underline{36}\phantom{0000} & \overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{2}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{5}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{1}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{9}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{0}\kern-0.075em}} \\ \phantom{0}\mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}93\phantom{000} & \\ \phantom{0}\underline{90}\phantom{000} & \\ \phantom{00}\mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}34\phantom{00} & \\ \phantom{00}\underline{18}\phantom{00} & \\ \phantom{00}\mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}162\phantom{0} & \\ \phantom{00}\underline{162}\phantom{0} & \\ \phantom{00000}0 & \end{array} \end{array}\] \[\begin{array}{l} \textcolor{#1a7f37}{\mathbf{3)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}172\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{0}}64 \\ \smash{\raisebox{0.62em}{$+$}} & 25190 \\ \hline & \textcolor{#e03131}{\mathbf{1}\kern-0.075em\mathbf{9}\kern-0.075em\mathbf{7}\kern-0.075em\mathbf{2}\kern-0.075em\mathbf{5}\kern-0.075em\mathbf{4}\kern-0.075em} \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{4)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}1\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{9}}72\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{5}}4 \\ \smash{\raisebox{0.62em}{$-$}} & 129025 \\ \hline & \textcolor{#e03131}{\mathbf{6}\kern-0.075em\mathbf{8}\kern-0.075em\mathbf{2}\kern-0.075em\mathbf{2}\kern-0.075em\mathbf{9}\kern-0.075em} \end{array} \end{array}\] \[(9\,452 \overset{\textcolor{#1a7f37}{1}}{-} 7\,344) \mathrel{\overset{\textcolor{#1a7f37}{4}}{\vphantom{+}{:}}} (308 \mathbin{\overset{\textcolor{#1a7f37}{2}}{\vphantom{+}\cdot}} 15 \overset{\textcolor{#1a7f37}{3}}{-} 4\,496) = \boxed{\smash[b]{\underset{\hspace{6em}}{\textcolor{#e03131}{\mathbf{17}}}}}\] \[\begin{array}{l} \textcolor{#1a7f37}{\mathbf{1)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}94\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{5}}2 \\ \smash{\raisebox{0.62em}{$-$}} & 7344 \\ \hline & \textcolor{#e03131}{\mathbf{2}\kern-0.075em\mathbf{1}\kern-0.075em\mathbf{0}\kern-0.075em\mathbf{8}\kern-0.075em} \\ & \vphantom{\underline{0}} \\ & \vphantom{\underline{0}} \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{2)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}308 \\ \smash{\raisebox{0.62em}{$\times$}} & 15 \\ \hline & 1540 \\ \smash{\raisebox{0.62em}{$+$}} & 308\phantom{0} \\ \hline & \textcolor{#e03131}{\mathbf{4}\kern-0.075em\mathbf{6}\kern-0.075em\mathbf{2}\kern-0.075em\mathbf{0}\kern-0.075em} \end{array} \end{array}\] \[\begin{array}{l} \textcolor{#1a7f37}{\mathbf{3)}} \\ \begin{array}{cr} & \vphantom{\overset{\bullet}{0}}4\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{6}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#1c7ed6}{2}}0 \\ \smash{\raisebox{0.62em}{$-$}} & \vphantom{\overset{\bullet}{0}}4496 \\ \hline & \textcolor{#e03131}{\mathbf{1}\kern-0.075em\mathbf{2}\kern-0.075em\mathbf{4}\kern-0.075em} \\ & \vphantom{\underline{0}} \\ & \vphantom{\underline{0}} \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{4)}} \\ \begin{array}{l|l} \mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}\overset{\mathclap{\textcolor{#1c7ed6}{\overgroup{\hphantom{\textstyle 210}}}}}{210}8 & \underline{\,124\,} \\ \underline{124}\phantom{0} & \overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{1}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{7}\kern-0.075em}} \\ \phantom{0}\mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}868 & \\ \phantom{0}\underline{868} & \\ \phantom{000}0 & \end{array} \end{array}\] \[35\,678 \overset{\textcolor{#1a7f37}{3}}{-} 35\,660 \overset{\textcolor{#1a7f37}{4}}{+} (50\,600 \overset{\textcolor{#1a7f37}{1}}{-} 20\,000) \mathrel{\overset{\textcolor{#1a7f37}{2}}{\vphantom{+}{:}}} 600 = \boxed{\smash[b]{\underset{\hspace{4em}}{\textcolor{#e03131}{\mathbf{69}}}}}\] \[\begin{array}{l} \textcolor{#1a7f37}{\mathbf{1)}} \\ \begin{array}{l} \vphantom{\overset{\bullet}{0}}50\,600 - 20\,000 = \textcolor{#e03131}{\mathbf{30\,600}} \\ \vphantom{\overset{\bullet}{0}} \\ \vphantom{\underline{0}} \\ \vphantom{\underline{0}} \\ \vphantom{\underline{0}} \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{2)}} \\ \begin{array}{l|l} \mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}\overset{\mathclap{\textcolor{#1c7ed6}{\overgroup{\hphantom{\textstyle 3060}}}}}{3060}0 & \underline{\,600\,} \\ \underline{3000}\phantom{0} & \overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{5}\kern-0.075em}}\overset{\textcolor{#1c7ed6}{\bullet}}{\textcolor{#e03131}{\mathbf{1}\kern-0.075em}} \\ \phantom{00}\mathllap{\smash{\raisebox{-0.5em}{$-$}}\,}600 & \\ \phantom{00}\underline{600} & \\ \phantom{0000}0 & \end{array} \end{array}\] \[\begin{array}{l} \textcolor{#1a7f37}{\mathbf{3)}} \\ \begin{array}{l} \vphantom{\overset{\bullet}{0}}35\,678 - 35\,660 = \textcolor{#e03131}{\mathbf{18}} \end{array} \end{array} \qquad \begin{array}{l} \textcolor{#1a7f37}{\mathbf{4)}} \\ \begin{array}{l} \vphantom{\overset{\bullet}{0}}18 + 51 = \textcolor{#e03131}{\mathbf{69}} \end{array} \end{array}\]