\[\boxed{\text{Страница}\text{\ 44.}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[\boxed{142.}\]
\[35 \cdot 0 < 35 \cdot 1\]
\[5 \cdot 80 < 80 \cdot 6\]
\[219 \cdot 3 > 2 \cdot 219\]
\[624 + 36 = 36 + 624\]
\[721 + 96 > 96 + 621\]
\[508 + 412 < 712 + 508\]
\[(3 \cdot 17) \cdot 5 = 3 \cdot (17 \cdot 5)\]
\[(219 + 0) \cdot 1 > (490 + 490) \cdot 0\]
\[\boxed{143.}\]
\[150 - 50 = 100\]
\[630 + 70 = 700\]
\[12 \cdot 4 = 48\]
\[160\ :80 = 2\]
\[42\ :21 = 2\]
\[90 \cdot 5 = 450\]
\[33\ :3 = 11\]
\[42\ :2 = 21\]
\[\boxed{144.}\]
\[48\ :1 > 2 \rightarrow верно\]
\[48\ :8 > 2 \rightarrow верно\]
\[48\ :48 > 2 \rightarrow неверно\]
\[\boxed{145.}\]