Страница 7, ГДЗ по математике за 2 класс к тренажёру Погореловой
Числа от 1 до 20
\[{\def\arraystretch{1.5}\begin{array}{|c|c|c|c|} \hline \colorbox{#ffa8a8}{$11 - 2$} & \colorbox{#b2f2bb}{$\kern0.25em 5 + 6\kern0.25em$} & \colorbox{#ffa8a8}{$14 - 5$} & \colorbox{#a5d8ff}{$16 - 9$} \\ \hline \colorbox{#b2f2bb}{$\kern0.25em 3 + 8\kern0.25em$} & 13 - 5 & \kern0.25em 7 + 3\kern0.25em & \colorbox{#ffa8a8}{$13 - 4$} \\ \hline \colorbox{#a5d8ff}{$14 - 7$} & \colorbox{#ffa8a8}{$12 - 3$} & \colorbox{#b2f2bb}{$\kern0.25em 2 + 9\kern0.25em$} & \kern0.25em 7 + 5\kern0.25em \\ \hline \kern0.25em 5 + 8\kern0.25em & \colorbox{#a5d8ff}{$11 - 4$} & \colorbox{#ffa8a8}{$16 - 7$} & \colorbox{#b2f2bb}{$\kern0.25em 4 + 7\kern0.25em$} \\ \hline \colorbox{#ffa8a8}{$15 - 6$} & \colorbox{#a5d8ff}{$15 - 8$} & \colorbox{#a5d8ff}{$13 - 6$} & \colorbox{#a5d8ff}{$12 - 5$} \\ \hline 17 - 9 & \colorbox{#ffa8a8}{$18 - 9$} & \kern0.25em 4 + 8\kern0.25em & \colorbox{#ffa8a8}{$17 - 8$} \\ \hline \colorbox{#b2f2bb}{$\kern0.25em 7 + 4\kern0.25em$} & \kern0.25em 6 + 6\kern0.25em & 15 - 7 & 13 - 8 \\ \hline \end{array}}\]
На клумбе у бабушки расцвели 8 астр и столько же гладиолусов. Она срезала 9 цветов. Сколько цветов осталось на клумбе?
\(1)\ 8 + 8 = \textcolor{#e03131}{\mathbf{16}}\text{ (цв.)}\)
\(2)\ 16 - 9 = \textcolor{#e03131}{\mathbf{7}}\text{ (цв.)}\)
Ответ: \(\textcolor{#e03131}{\mathbf{7}}\) цветов.
\[\begin{aligned} \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} + \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em} &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{1}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em} \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em} + \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em} + \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em} &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{1}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em} \\ \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em} + \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em} &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{1}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em} \end{aligned}\] \(\textcolor{#808080}{\text{По цвету, по}}\) \(\textcolor{#808080}{\text{форме, по размеру.}}\)
