Часть 1 страница 18, ГДЗ по математике за 4 класс к рабочей тетради Дорофеева
Диагональ многоугольника
\[{\def\arraystretch{1.4}\begin{array}{lcccc} \boxed{17 \cdot 4} & 48 & 21 & \hspace{1.04em}\mathclap{\vcenter{\textcolor{#e03131}{\huge\bigcirc}}}\mathclap{68}\hspace{1.04em} & 78 \\[8pt] \boxed{12 \cdot 6} & 18 & 60 & 84 & \hspace{1.04em}\mathclap{\vcenter{\textcolor{#e03131}{\huge\bigcirc}}}\mathclap{72}\hspace{1.04em} \\[8pt] \boxed{75 : 25} & 100 & \hspace{1.04em}\mathclap{\vcenter{\textcolor{#e03131}{\huge\bigcirc}}}\mathclap{3}\hspace{1.04em} & 50 & 4 \\[8pt] \boxed{96 : 8} & \hspace{1.04em}\mathclap{\vcenter{\textcolor{#e03131}{\huge\bigcirc}}}\mathclap{12}\hspace{1.04em} & 11 & 13 & 10 \end{array}}\]
\[\underset{270}{\undergroup{\rule[-0.35em]{0.07em}{0.7em}\overset{\textcolor{#1a7f37}{80}}{\overgroup{\rule[-0.035em]{3.56em}{0.07em}}}\rule[-0.35em]{0.07em}{0.7em}\overset{\textcolor{#1a7f37}{80}}{\overgroup{\rule[-0.035em]{3.56em}{0.07em}}}\rule[-0.35em]{0.07em}{0.7em}\overset{\textcolor{#1a7f37}{80}}{\overgroup{\rule[-0.035em]{3.56em}{0.07em}}}\rule[-0.35em]{0.07em}{0.7em}\overset{?}{\overgroup{\textcolor{#ff8787}{\rule[-0.035em]{1.33em}{0.07em}}}}\rule[-0.35em]{0.07em}{0.7em}}}\smash{\textcolor{#e03131}{\mathrlap{\rule[-0.045em]{2.5em}{0.09em}}\mathrlap{\kern0.2em\bcancel{\phantom{\rule[-2.14em]{2.1em}{2.14em}}}}\mathrlap{\kern0.2em\bcancel{\phantom{\rule[-2.1em]{2.1em}{2.14em}}}}}}\hspace{2em}\begin{array}{ll} \phantom{\rule[0.32em]{2.2em}{0.09em}} & \rule[-0.82em]{0pt}{2.87em}\boxed{80 \cdot 3 + 270} \\ \textcolor{#e03131}{\rule[0.32em]{2.2em}{0.09em}} & \rule[-0.82em]{0pt}{2.14em}\boxed{270 - 80 \cdot 3} \\ \textcolor{#e03131}{\rule[0.32em]{2.2em}{0.09em}} & \rule[-0.82em]{0pt}{2.14em}\boxed{270 - 80 - 80 - 80} \end{array}\]
\[\begin{aligned} 157 + 43 &= \boxed{\smash[b]{\underset{\hspace{2em}}{\textcolor{#e03131}{\mathbf{200}}}}}\text{ Я} & \qquad 420 : 7 \cdot 9 &= \boxed{\smash[b]{\underset{\hspace{2em}}{\textcolor{#e03131}{\mathbf{540}}}}}\text{ О} \\ 2 \cdot (95 : 5) &= \boxed{\smash[b]{\underset{\hspace{1.5em}}{\textcolor{#e03131}{\mathbf{38}}}}}\text{ Р} & \qquad 500 - 426 &= \boxed{\smash[b]{\underset{\hspace{1.5em}}{\textcolor{#e03131}{\mathbf{74}}}}}\text{ А} \\ 12 \cdot 8 + 54 &= \boxed{\smash[b]{\underset{\hspace{2em}}{\textcolor{#e03131}{\mathbf{150}}}}}\text{ М} & \qquad 200 : (32 : 8) &= \boxed{\smash[b]{\underset{\hspace{1.5em}}{\textcolor{#e03131}{\mathbf{50}}}}}\text{ Е} \\ 715 - 695 &= \boxed{\smash[b]{\underset{\hspace{1.5em}}{\textcolor{#e03131}{\mathbf{20}}}}}\text{ В} & \qquad 124 - 72 : 3 &= \boxed{\smash[b]{\underset{\hspace{2em}}{\textcolor{#e03131}{\mathbf{100}}}}}\text{ Н} \\ 45 \cdot 4 : 3 &= \boxed{\smash[b]{\underset{\hspace{1.5em}}{\textcolor{#e03131}{\mathbf{60}}}}}\text{ Ь} \end{aligned}\] \[\begin{array}{|c|c|c|c|c|} \hline 150 & 74 & 38 & 60 & 200 \\ \hline \textcolor{#e03131}{\textbf{М}} & \textcolor{#e03131}{\textbf{А}} & \textcolor{#e03131}{\textbf{Р}} & \textcolor{#e03131}{\textbf{Ь}} & \textcolor{#e03131}{\textbf{Я}} \\ \hline \end{array}\] \[\begin{array}{|c|c|c|c|c|c|c|} \hline 150 & 540 & 38 & 50 & 20 & 100 & 74 \\ \hline \textcolor{#e03131}{\textbf{М}} & \textcolor{#e03131}{\textbf{О}} & \textcolor{#e03131}{\textbf{Р}} & \textcolor{#e03131}{\textbf{Е}} & \textcolor{#e03131}{\textbf{В}} & \textcolor{#e03131}{\textbf{Н}} & \textcolor{#e03131}{\textbf{А}} \\ \hline \end{array}\]
