Страница 73, ГДЗ по математике за 3 класс к проверочным работам Волковой. Серия "Школа России" к УМК Моро
Сложение и вычитание. Проверочная работа 1. Вариант 2
\[\begin{aligned} &\begin{aligned} 1) & & 70 + 40 &= \textcolor{#e03131}{\mathbf{110}} & \qquad 300 - 90 &= \textcolor{#e03131}{\mathbf{210}} \\ & & 810 - 300 &= \textcolor{#e03131}{\mathbf{510}} & \qquad 840 + 60 &= \textcolor{#e03131}{\mathbf{900}} \\ & & 370 + 60 &= \textcolor{#e03131}{\mathbf{430}} & \qquad 320 - 80 &= \textcolor{#e03131}{\mathbf{240}} \\ & & 250 + 430 &= \textcolor{#e03131}{\mathbf{680}} & \qquad 590 - 270 &= \textcolor{#e03131}{\mathbf{320}} \end{aligned} \\[10pt] &\begin{aligned} 2) & & 800 \mathrel{\overset{\textcolor{#1a7f37}{1}}{\vphantom{+}{:}}} 200 \mathbin{\overset{\textcolor{#1a7f37}{2}}{\vphantom{+}\cdot}} 7 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} & \qquad 300 \mathbin{\overset{\textcolor{#1a7f37}{1}}{\vphantom{+}\cdot}} 2 \overset{\textcolor{#1a7f37}{2}}{+} 250 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} \\ & & 460 \overset{\textcolor{#1a7f37}{1}}{-} 60 \overset{\textcolor{#1a7f37}{2}}{-} 10 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} & \qquad 730 \overset{\textcolor{#1a7f37}{1}}{+} 70 \overset{\textcolor{#1a7f37}{2}}{-} 50 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} \end{aligned} \end{aligned}\]
\[\begin{aligned} 34\text{ см }8\text{ мм} &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em}\text{ мм} & \qquad 7\text{ р. }50\text{ к.} &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em}\text{ к.} \\ 5\text{ м }60\text{ см} &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em}\text{ см} & \qquad 800\text{ к.} &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em}\text{ р.} \end{aligned}\]
\(1)\ 24 : 8 = \textcolor{#e03131}{\mathbf{3}}\text{ (м)}\)
\(2)\ 3 - 1 = \textcolor{#e03131}{\mathbf{2}}\text{ (м)}\)
\(3)\ 36 : 2 = \textcolor{#e03131}{\mathbf{18}}\text{ (бл.)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{18}}\) блузок.
В трёхзначном номере квартиры использованы цифры: 4, 6, 7. Запиши номер квартиры, если он больше, чем 670, но меньше, чем 740. \({\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em}}\)
\(\textcolor{#808080}{\text{Из цифр }{4}\text{,}}\) \(\textcolor{#808080}{{6}\text{,}}\) \(\textcolor{#808080}{{7}\text{:}}\) \(\textcolor{#808080}{{467}\text{,}}\) \(\textcolor{#808080}{{476}\text{,}}\) \(\textcolor{#808080}{{647}\text{,}}\) \(\textcolor{#808080}{{674}\text{,}}\) \(\textcolor{#808080}{{746}\text{,}}\) \(\textcolor{#808080}{{764}\text{;}}\) \(\textcolor{#808080}{\text{больше }{670}}\) \(\textcolor{#808080}{\text{и меньше }{740}}\) \(\textcolor{#808080}{\text{только }{674}\text{.}}\)
