\[\boxed{\text{Страница}\text{\ 53.}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[147.\]
\[18 + 5 = 23\]
\[29 + 7 = 36\]
\[41 + 9 = 50\]
\[35 \cdot 10 = 350\]
\[4 \cdot 100 = 400\]
\[10 \cdot 5 = 50\]
\[84\ :4 = 21\]
\[96\ :3 = 32\]
\[50\ :2 = 25\]
\[148.\]
\[Синий:\]
\[1409 < 2136\]
\[2136 < 70\ 000\]
\[70\ 000 > 1409\]
\[Красный:\]
\[3009 > 609\]
\[609 < 906\]
\[3008 > 906\]
\[149.\]
\[1)\ x = 0;1;2;3;4.\]
\[2)\ y = 9;10;11;12.\]
\[150.\]