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Страница 56, ГДЗ по математике за 4 класс к самостоятельным и контрольным работам Лопатковой

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Умножение и деление на числа, оканчивающиеся нулями. Тест. Вариант 1

А1. Вычисли \(720 \cdot 60\).

\[{\def\arraystretch{1.3}\begin{array}{ll} \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace 43\,020 & \qquad \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace 430\,020 \\ \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace 4\,320 & \qquad \mathrlap{\vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}}\hspace{0.39em}\mathclap{\vcenter{\rule[-0.224em]{0pt}{0.224em}\textcolor{#e03131}{\footnotesize\pmb{\mathrlap{\checkmark}\mathrlap{\kern0.04em\checkmark}\kern0.08em\checkmark}}}}\hspace{0.39em}\enspace \textcolor{#e03131}{\boldsymbol{43\,200}} \end{array}}\]

А2. Какое число умножили на 100 и получили \(3\,405\,000\)?

\[{\def\arraystretch{1.3}\begin{array}{ll} \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace 3\,450 & \qquad \mathrlap{\vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}}\hspace{0.39em}\mathclap{\vcenter{\rule[-0.224em]{0pt}{0.224em}\textcolor{#e03131}{\footnotesize\pmb{\mathrlap{\checkmark}\mathrlap{\kern0.04em\checkmark}\kern0.08em\checkmark}}}}\hspace{0.39em}\enspace \textcolor{#e03131}{\boldsymbol{34\,050}} \\ \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace 3\,405 & \qquad \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace 340\,500 \end{array}}\]

А3. Вычисли \(400 \cdot 80\).

\[\begin{array}{llll} \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace 320 & \qquad \mathrlap{\vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}}\hspace{0.39em}\mathclap{\vcenter{\rule[-0.224em]{0pt}{0.224em}\textcolor{#e03131}{\footnotesize\pmb{\mathrlap{\checkmark}\mathrlap{\kern0.04em\checkmark}\kern0.08em\checkmark}}}}\hspace{0.39em}\enspace \textcolor{#e03131}{\boldsymbol{32\,000}} & \qquad \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace 3\,200 & \qquad \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace 302 \end{array}\]

А4. Какой остаток в частном \(5\,490 : 60\)?

\[{\def\arraystretch{1.3}\begin{array}{ll} \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace 290 & \qquad \mathrlap{\vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}}\hspace{0.39em}\mathclap{\vcenter{\rule[-0.224em]{0pt}{0.224em}\textcolor{#e03131}{\footnotesize\pmb{\mathrlap{\checkmark}\mathrlap{\kern0.04em\checkmark}\kern0.08em\checkmark}}}}\hspace{0.39em}\enspace \textcolor{#e03131}{\boldsymbol{30}} \\ \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace 90 & \qquad \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace \text{нет остатка} \end{array}}\]

В1. Вычисли \(364\,420 : 70\).

\[\begin{array}{llll} \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace 52\,060 & \qquad \mathrlap{\vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}}\hspace{0.39em}\mathclap{\vcenter{\rule[-0.224em]{0pt}{0.224em}\textcolor{#e03131}{\footnotesize\pmb{\mathrlap{\checkmark}\mathrlap{\kern0.04em\checkmark}\kern0.08em\checkmark}}}}\hspace{0.39em}\enspace \textcolor{#e03131}{\boldsymbol{5\,206}} & \qquad \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace 50\,260 & \qquad \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace 5\,260 \end{array}\]

В2. Реши уравнение \(x : 70 = 95\).

\[\begin{array}{llll} \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace 5 & \qquad \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace 5\,700 & \qquad \mathrlap{\vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}}\hspace{0.39em}\mathclap{\vcenter{\rule[-0.224em]{0pt}{0.224em}\textcolor{#e03131}{\footnotesize\pmb{\mathrlap{\checkmark}\mathrlap{\kern0.04em\checkmark}\kern0.08em\checkmark}}}}\hspace{0.39em}\enspace \textcolor{#e03131}{\boldsymbol{6\,650}} & \qquad \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace 7\,220 \end{array}\]

В3. В каком примере допущена ошибка?

\[{\def\arraystretch{1.3}\begin{array}{ll} \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace 3\,800 \cdot 40 = 152\,000 & \qquad \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace 2\,280 : 60 = 38 \\ \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace 69\,100 : 100 = 691 & \qquad \mathrlap{\vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}}\hspace{0.39em}\mathclap{\vcenter{\rule[-0.224em]{0pt}{0.224em}\textcolor{#e03131}{\footnotesize\pmb{\mathrlap{\checkmark}\mathrlap{\kern0.04em\checkmark}\kern0.08em\checkmark}}}}\hspace{0.39em}\enspace \textcolor{#e03131}{\boldsymbol{320 : 80 = 40}} \end{array}}\]

С1. Значение какого выражения равно \(251\,444\)?

\[{\def\arraystretch{1.3}\begin{array}{ll} \mathrlap{\vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}}\hspace{0.39em}\mathclap{\vcenter{\rule[-0.224em]{0pt}{0.224em}\textcolor{#e03131}{\footnotesize\pmb{\mathrlap{\checkmark}\mathrlap{\kern0.04em\checkmark}\kern0.08em\checkmark}}}}\hspace{0.39em}\enspace \textcolor{#e03131}{\boldsymbol{62\,861 \cdot 4}} & \qquad \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace 754\,332 \cdot 3 \\ \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace 20\,352 : 8 & \qquad \vcenter{\rule[-0.484em]{0pt}{0.484em}\boxed{\rule{0pt}{0.1em}\hspace{0.18em}}}\enspace 4\,697 \cdot 6 \end{array}}\] \[\begin{array}{cr} & \vphantom{\overset{\bullet}{0}}62861 \\ \smash{\raisebox{0.62em}{$\times$}} & 4 \\ \hline & \textcolor{#e03131}{\mathbf{2}\kern-0.075em\mathbf{5}\kern-0.075em\mathbf{1}\kern-0.075em\mathbf{4}\kern-0.075em\mathbf{4}\kern-0.075em\mathbf{4}\kern-0.075em} \end{array}\]

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