Ответы к учебнику по математике за 2 класс 1 часть Рудницкая. Периметр многоугольника. Номер №9

Выполни вычисления.
46 − 29
25 + 48
54 − 17
100 − 34
15 + 15
38 + 38
62 + 27
71 − 16
83 − 7
94 − 49
70 − 9
57 + 43
55 + 45
100 − 97
29 + 8

Ответ

46 − 29 = 17
25 + 48 = 73
54 − 17 = 37
100 − 34 = 66
15 + 15 = 30
38 + 38 = 76
62 + 27 = 89
71 − 16 = 55
83 − 7 = 76
94 − 49 = 45
70 − 9 = 61
57 + 43 = 100
55 + 45 = 100
100 − 97 = 3
29 + 8 = 37
Вычисления:

$\begin{array}{r}\begin{array}{r}—\end{array}\underline{\begin{array}{r}46\\ 29\end{array}}\\ \begin{array}{r}17\end{array}\end{array}$

$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}25\\ 48\end{array}}\\ \begin{array}{r}73\end{array}\end{array}$

$\begin{array}{r}\begin{array}{r}—\end{array}\underline{\begin{array}{r}54\\ 17\end{array}}\\ \begin{array}{r}37\end{array}\end{array}$

$\begin{array}{r}\begin{array}{r}—\end{array}\underline{\begin{array}{r}100\\ 34\end{array}}\\ \begin{array}{r}66\end{array}\end{array}$

$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}15\\ 15\end{array}}\\ \begin{array}{r}30\end{array}\end{array}$

$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}38\\ 38\end{array}}\\ \begin{array}{r}76\end{array}\end{array}$

$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}62\\ 27\end{array}}\\ \begin{array}{r}89\end{array}\end{array}$

$\begin{array}{r}\begin{array}{r}—\end{array}\underline{\begin{array}{r}71\\ 16\end{array}}\\ \begin{array}{r}55\end{array}\end{array}$

$\begin{array}{r}\begin{array}{r}—\end{array}\underline{\begin{array}{r}83\\ 7\end{array}}\\ \begin{array}{r}76\end{array}\end{array}$

$\begin{array}{r}\begin{array}{r}—\end{array}\underline{\begin{array}{r}94\\ 49\end{array}}\\ \begin{array}{r}45\end{array}\end{array}$

$\begin{array}{r}\begin{array}{r}—\end{array}\underline{\begin{array}{r}70\\ 9\end{array}}\\ \begin{array}{r}61\end{array}\end{array}$

$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}57\\ 43\end{array}}\\ \begin{array}{r}100\end{array}\end{array}$

$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}55\\ 45\end{array}}\\ \begin{array}{r}100\end{array}\end{array}$

$\begin{array}{r}\begin{array}{r}—\end{array}\underline{\begin{array}{r}100\\ 97\end{array}}\\ \begin{array}{r}3\end{array}\end{array}$

$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}29\\ 8\end{array}}\\ \begin{array}{r}37\end{array}\end{array}$