2класс

Страница 16, ГДЗ по математике за 2 класс к тренажёру Погореловой

Выберите номер:
1 2

Вычисления вида 36 + 2, 36 + 20, 36 − 2, 36 − 20

1. Выполни сложение.

\[\begin{aligned} 56 + 3 &= 50 + (6 + 3) = \textcolor{#e03131}{\mathbf{59}} \\ 32 + 4 &= 30 + (\boxed{\kern0.035em\phantom{\mathbf{0}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em} + \boxed{\kern0.035em\phantom{\mathbf{0}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em}) = \textcolor{#e03131}{\mathbf{36}} \\ 71 + 7 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} + (\boxed{\kern0.035em\phantom{\mathbf{0}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{1}}\kern0.035em} + \boxed{\kern0.035em\phantom{\mathbf{0}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em}) = \textcolor{#e03131}{\mathbf{78}} \\ 43 + 2 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} + (\boxed{\kern0.035em\phantom{\mathbf{0}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em} + \boxed{\kern0.035em\phantom{\mathbf{0}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em}) = \textcolor{#e03131}{\mathbf{45}} \\ 95 + 3 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{9}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} + (\boxed{\kern0.035em\phantom{\mathbf{0}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em} + \boxed{\kern0.035em\phantom{\mathbf{0}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em}) = \textcolor{#e03131}{\mathbf{98}} \\ 64 + 10 &= 60 + 10 + 4 = \textcolor{#e03131}{\mathbf{74}} \\ 17 + 40 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{1}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} + \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} + \boxed{\kern0.035em\phantom{\mathbf{0}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{7}}\kern0.035em} = \textcolor{#e03131}{\mathbf{57}} \\ 46 + 30 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{4}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} + \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} + \boxed{\kern0.035em\phantom{\mathbf{0}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} = \textcolor{#e03131}{\mathbf{76}} \\ 28 + 50 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{2}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} + \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{5}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} + \boxed{\kern0.035em\phantom{\mathbf{0}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{8}}\kern0.035em} = \textcolor{#e03131}{\mathbf{78}} \\ 36 + 30 &= \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} + \boxed{\kern0.035em\textcolor{#e03131}{\mathbf{3}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{0}}\kern0.035em} + \boxed{\kern0.035em\phantom{\mathbf{0}}\kern0.035em}\hspace{-0.04em}\boxed{\kern0.035em\textcolor{#e03131}{\mathbf{6}}\kern0.035em} = \textcolor{#e03131}{\mathbf{66}} \end{aligned}\]

2. Вычисли.

\[\begin{aligned} 41 + 4 &= \textcolor{#e03131}{\mathbf{45}} & \qquad 93 + 6 &= \textcolor{#e03131}{\mathbf{99}} & \qquad 44 + 4 &= \textcolor{#e03131}{\mathbf{48}} \\ 41 + 40 &= \textcolor{#e03131}{\mathbf{81}} & \qquad 24 + 30 &= \textcolor{#e03131}{\mathbf{54}} & \qquad 71 + 7 &= \textcolor{#e03131}{\mathbf{78}} \\ 84 + 5 &= \textcolor{#e03131}{\mathbf{89}} & \qquad 75 + 2 &= \textcolor{#e03131}{\mathbf{77}} & \qquad 36 + 20 &= \textcolor{#e03131}{\mathbf{56}} \\ 67 + 20 &= \textcolor{#e03131}{\mathbf{87}} & \qquad 75 + 20 &= \textcolor{#e03131}{\mathbf{95}} & \qquad 53 + 5 &= \textcolor{#e03131}{\mathbf{58}} \\ 32 + 6 &= \textcolor{#e03131}{\mathbf{38}} & \qquad 82 + 4 &= \textcolor{#e03131}{\mathbf{86}} & \qquad 25 + 1 &= \textcolor{#e03131}{\mathbf{26}} \end{aligned}\]

Сообщить об ошибке

Не получилось открыть форму обратной связи.
Напишите нам: admin@pomogalka.me