Часть 1 страница 71, ГДЗ по математике за 4 класс к рабочей тетради Дорофеева

\[\mathrlap{\hphantom{\rule[-0.35em]{0.07em}{0.7em}}\underset{\mathclap{90}}{\undergroup{\hphantom{\rule[-0.035em]{2.4em}{0.07em}}\hphantom{\rule[-0.35em]{0.07em}{0.7em}}\hphantom{\rule[-0.035em]{0.44em}{0.07em}}}}\hphantom{\rule[-0.35em]{0.07em}{0.7em}}\underset{\mathclap{90}}{\undergroup{\hphantom{\rule[-0.035em]{1.96em}{0.07em}}\hphantom{\rule[-0.35em]{0.07em}{0.7em}}\hphantom{\rule[-0.035em]{0.88em}{0.07em}}}}\hphantom{\rule[-0.35em]{0.07em}{0.7em}}\underset{\mathclap{90}}{\undergroup{\hphantom{\rule[-0.035em]{1.52em}{0.07em}}\hphantom{\rule[-0.35em]{0.07em}{0.7em}}\hphantom{\rule[-0.035em]{1.33em}{0.07em}}}}\hphantom{\rule[-0.35em]{0.07em}{0.7em}}\underset{\mathclap{?}}{\phantom{\undergroup{\hphantom{\textcolor{#ff8787}{\rule[-0.035em]{1.07em}{0.07em}}}\hphantom{\rule[-0.35em]{0.07em}{0.7em}}\hphantom{\textcolor{#ff8787}{\rule[-0.035em]{2.4em}{0.07em}}}}}}\hphantom{\rule[-0.35em]{0.07em}{0.7em}}}\rule[-0.35em]{0.07em}{0.7em}\overset{\mathclap{76}}{\overgroup{\rule[-0.035em]{2.4em}{0.07em}}}\rule[-0.35em]{0.07em}{0.7em}\overset{\mathclap{76}}{\overgroup{\rule[-0.035em]{0.44em}{0.07em}\smash{\rule[-0.35em]{0.07em}{0.7em}}\rule[-0.035em]{1.96em}{0.07em}}}\rule[-0.35em]{0.07em}{0.7em}\overset{\mathclap{76}}{\overgroup{\rule[-0.035em]{0.88em}{0.07em}\smash{\rule[-0.35em]{0.07em}{0.7em}}\rule[-0.035em]{1.52em}{0.07em}}}\rule[-0.35em]{0.07em}{0.7em}\overset{\mathclap{76}}{\overgroup{\rule[-0.035em]{1.33em}{0.07em}\smash{\rule[-0.35em]{0.07em}{0.7em}}\textcolor{#ff8787}{\rule[-0.035em]{1.07em}{0.07em}}}}\rule[-0.35em]{0.07em}{0.7em}\overset{\mathclap{76}}{\overgroup{\textcolor{#ff8787}{\rule[-0.035em]{2.4em}{0.07em}}}}\rule[-0.35em]{0.07em}{0.7em}\smash{\textcolor{#e03131}{\mathrlap{\kern0.2em\cancel{\phantom{\rule[0em]{2.1em}{2.14em}}}}\mathrlap{\kern0.2em\cancel{\phantom{\rule[-0.04em]{2.1em}{2.14em}}}}}}\hspace{2em}\begin{array}{ll} \textcolor{#e03131}{\rule[0.32em]{2.2em}{0.09em}} & \rule[-0.82em]{0pt}{2.87em}\boxed{76 \cdot 5 - 90 \cdot 3} \\ \phantom{\rule[0.32em]{2.2em}{0.09em}} & \rule[-0.82em]{0pt}{2.14em}\boxed{76 \cdot 5 + 90 \cdot 3} \\ \phantom{\rule[0.32em]{2.2em}{0.09em}} & \rule[-0.82em]{0pt}{2.14em}\boxed{76 \cdot 5 - 90} \end{array}\] Нарисуй схемы к оставшимся выражениям. \[\textcolor{#e03131}{\begin{array}{ll} 76 \cdot 5 + 90 \cdot 3 & \mathrlap{\raisebox{0.315em}{$\hphantom{\rule{0.07em}{0.7em}}\underset{\mathclap{76}}{\undergroup{\hphantom{\rule[0.315em]{1.87em}{0.07em}}}}\hphantom{\rule{0.07em}{0.7em}}\underset{\mathclap{76}}{\undergroup{\hphantom{\rule[0.315em]{1.87em}{0.07em}}}}\hphantom{\rule{0.07em}{0.7em}}\underset{\mathclap{76}}{\undergroup{\hphantom{\rule[0.315em]{1.87em}{0.07em}}}}\hphantom{\rule{0.07em}{0.7em}}\underset{\mathclap{76}}{\undergroup{\hphantom{\rule[0.315em]{1.87em}{0.07em}}}}\hphantom{\rule{0.07em}{0.7em}}\underset{\mathclap{76}}{\undergroup{\hphantom{\rule[0.315em]{1.87em}{0.07em}}}}\hphantom{\rule{0.07em}{0.7em}}\underset{\mathclap{90}}{\undergroup{\hphantom{\rule[0.315em]{2.22em}{0.07em}}}}\hphantom{\rule{0.07em}{0.7em}}\underset{\mathclap{90}}{\undergroup{\hphantom{\rule[0.315em]{2.22em}{0.07em}}}}\hphantom{\rule{0.07em}{0.7em}}\underset{\mathclap{90}}{\undergroup{\hphantom{\rule[0.315em]{2.22em}{0.07em}}}}\hphantom{\rule{0.07em}{0.7em}}$}}\rule{0.07em}{0.7em}\overset{\mathclap{?}}{\overgroup{\rule[0.315em]{1.87em}{0.07em}\smash{\rule{0.07em}{0.7em}}\rule[0.315em]{1.87em}{0.07em}\smash{\rule{0.07em}{0.7em}}\rule[0.315em]{1.87em}{0.07em}\smash{\rule{0.07em}{0.7em}}\rule[0.315em]{1.87em}{0.07em}\smash{\rule{0.07em}{0.7em}}\rule[0.315em]{1.87em}{0.07em}\smash{\rule{0.07em}{0.7em}}\rule[0.315em]{2.22em}{0.07em}\smash{\rule{0.07em}{0.7em}}\rule[0.315em]{2.22em}{0.07em}\smash{\rule{0.07em}{0.7em}}\rule[0.315em]{2.22em}{0.07em}}}\rule{0.07em}{0.7em} \\[14pt] 76 \cdot 5 - 90 & \mathrlap{\raisebox{0.315em}{$\hphantom{\rule{0.07em}{0.7em}}\underset{\mathclap{90}}{\undergroup{\hphantom{\rule[0.315em]{1.87em}{0.07em}}\hphantom{\rule{0.07em}{0.7em}}\hphantom{\rule[0.315em]{0.34em}{0.07em}}}}\hphantom{\rule{0.07em}{0.7em}}\underset{\mathclap{?}}{\phantom{\undergroup{\hphantom{\rule[0.28em]{1.53em}{0.14em}}\hphantom{\rule{0.07em}{0.7em}}\hphantom{\rule[0.28em]{1.87em}{0.14em}}\hphantom{\rule{0.07em}{0.7em}}\hphantom{\rule[0.28em]{1.87em}{0.14em}}\hphantom{\rule{0.07em}{0.7em}}\hphantom{\rule[0.28em]{1.87em}{0.14em}}}}}\hphantom{\rule{0.07em}{0.7em}}$}}\rule{0.07em}{0.7em}\overset{\mathclap{76}}{\overgroup{\rule[0.315em]{1.87em}{0.07em}}}\rule{0.07em}{0.7em}\overset{\mathclap{76}}{\overgroup{\rule[0.315em]{0.34em}{0.07em}\smash{\rule{0.07em}{0.7em}}\rule[0.28em]{1.53em}{0.14em}}}\rule{0.07em}{0.7em}\overset{\mathclap{76}}{\overgroup{\rule[0.28em]{1.87em}{0.14em}}}\rule{0.07em}{0.7em}\overset{\mathclap{76}}{\overgroup{\rule[0.28em]{1.87em}{0.14em}}}\rule{0.07em}{0.7em}\overset{\mathclap{76}}{\overgroup{\rule[0.28em]{1.87em}{0.14em}}}\rule{0.07em}{0.7em} \end{array}}\]

\[\begin{aligned} 120 + 40 \cdot 2 &= \boxed{\smash[b]{\underset{\hspace{2em}}{\textcolor{#e03131}{\mathbf{200}}}}} & \qquad 400 - 130 \cdot 3 &= \boxed{\smash[b]{\underset{\hspace{1.5em}}{\textcolor{#e03131}{\mathbf{10}}}}} \\ \textcolor{#e03131}{\underline{\boldsymbol{(120 + 40) \cdot 2}\vphantom{(}}} &= \boxed{\smash[b]{\underset{\hspace{2em}}{\textcolor{#e03131}{\mathbf{320}}}}} & \qquad \textcolor{#e03131}{\underline{\boldsymbol{(400 - 130) \cdot 3}\vphantom{(}}} &= \boxed{\smash[b]{\underset{\hspace{2em}}{\textcolor{#e03131}{\mathbf{810}}}}} \end{aligned}\] \[\begin{aligned} \textcolor{#e03131}{\underline{\boldsymbol{300 - 180 : 6}\vphantom{(}}} &= \boxed{\smash[b]{\underset{\hspace{2em}}{\textcolor{#e03131}{\mathbf{270}}}}} \\ (300 - 180) : 6 &= \boxed{\smash[b]{\underset{\hspace{1.5em}}{\textcolor{#e03131}{\mathbf{20}}}}} \end{aligned}\] В каждом столбике подчеркни то выражение, значение которого больше.

1) на треугольник и пятиугольник;
2) на два четырёхугольника, которые не являются прямоугольниками.

\[\begin{aligned} 230\text{ кг} + 483\text{ кг} &= \boxed{\smash[b]{\underset{\hspace{2em}}{\textcolor{#e03131}{\mathbf{713}}}}}\text{ кг} \\ 722\text{ л} - 580\text{ л} &= \boxed{\smash[b]{\underset{\hspace{2em}}{\textcolor{#e03131}{\mathbf{142}}}}}\text{ л} \\ 19\text{ м} + 884\text{ м} &= \boxed{\smash[b]{\underset{\hspace{2em}}{\textcolor{#e03131}{\mathbf{903}}}}}\text{ м} \\ 6\text{ ч }10\text{ мин} - 54\text{ мин} &= \boxed{\smash[b]{\underset{\hspace{2em}}{\textcolor{#e03131}{\mathbf{316}}}}}\text{ мин} \\ 2\text{ м }7\text{ дм} - 124\text{ см} &= \boxed{\smash[b]{\underset{\hspace{2em}}{\textcolor{#e03131}{\mathbf{146}}}}}\text{ см} \\ 1\text{ кг} - 630\text{ г} &= \boxed{\smash[b]{\underset{\hspace{2em}}{\textcolor{#e03131}{\mathbf{370}}}}}\text{ г} \end{aligned}\]