Ответы к учебнику по математике за 2 класс 2 часть Рудницкая. Во сколько раз больше или меньше?. Номер №23

Вычисли.
(7 * 8) − 56
(24 : 8) : 3
(6 * 5) : 5
(63 : 7) + 48​​​​​​​
(6 * 9) − 37​​​​​​​
0 : (56 − 48)​​​​​​​
44 + 38​​​​​​​
22 + 77
100 − 99

Ответ

(7 * 8) − 56 = 0
(24 : 8) : 3 = 1
(6 * 5) : 5 = 6
(63 : 7) + 48​​​​​​​ = 57
(6 * 9) − 37​​​​​​​ = 17
0 : (56 − 48)​​​​​​​ = 0
44 + 38​​​​​​​ = 82
22 + 77 = 99
100 − 99 = 1
Вычисления:
(7 * 8) − 56 = 56 − 56 =0

$\begin{array}{r}\begin{array}{r}—\end{array}\underline{\begin{array}{r}56\\ 56\end{array}}\\ \begin{array}{r}0\end{array}\end{array}$
(24 : 8) : 3 = 3 : 3 = 1
(6 * 5) : 5 = 30 : 5 = 6
(63 : 7) + 48​​​​​​​ = 9 + 48 = 57

$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}9\\ 48\end{array}}\\ \begin{array}{r}57\end{array}\end{array}$
(6 * 9) − 37​​​​​​​ = 54 − 37 = 17

$\begin{array}{r}\begin{array}{r}—\end{array}\underline{\begin{array}{r}54\\ 37\end{array}}\\ \begin{array}{r}17\end{array}\end{array}$
0 : (56 − 48)​​​​​​​ = 0 : 8 = 0

$\begin{array}{r}\begin{array}{r}—\end{array}\underline{\begin{array}{r}56\\ 48\end{array}}\\ \begin{array}{r}8\end{array}\end{array}$
44 + 38​​​​​​​ = 82

$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}44\\ 38\end{array}}\\ \begin{array}{r}82\end{array}\end{array}$
22 + 77 = 99

$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}22\\ 77\end{array}}\\ \begin{array}{r}99\end{array}\end{array}$
100 − 99 = 1

$\begin{array}{r}\begin{array}{r}—\end{array}\underline{\begin{array}{r}100\\ 99\end{array}}\\ \begin{array}{r}1\end{array}\end{array}$