Укажите порядок действий и упростите выражение:
а) 320 − (64 : 8 + 16);
б) 45 + 24 * 5 − (59 − 9);
в) 98 − 72 : 9 − (35 + 55) : 3;
г) 270 : (303 : 3 − 11) + 48;
д) 26 − (53 − 48) * 4 − 4;
е) 48 − (31 − 15) * 2 − 2;
ж) 66 − (65 − 47) : 6 + 3;
з) 54 : (13 − 10) * 2 + 36.
$320 \overset{3}{-} (64 \overset{1}{:} 8 \overset{2}{+} 16) = 320 - (8 + 16) = 320 - 24 = 296$
$45 \overset{3}{+} 24 \overset{2}{*} 5 \overset{4}{-} (59 \overset{1}{-} 9) = 45 + 120 - 50 = 165 - 50 = 115$
$98 \overset{4}{-} 72 \overset{2}{:} 9 \overset{5}{-} (35 \overset{1}{+} 55) \overset{3}{:} 3 = 98 - 8 - 90 : 3 = 90 - 30 = 60$
$270 \overset{3}{:} (303 \overset{1}{:} 3 \overset{2}{-} 11) \overset{4}{+} 48 = 270 : (101 - 11) + 48 = 270 : 90 + 48 = 3 + 48 = 51$
$26 \overset{3}{-} (53 \overset{1}{-} 48) \overset{2}{*} 4 \overset{4}{-} 4 = 26 - 5 * 4 - 4 = 26 - 20 - 4 = 6 - 4 = 2$
$48 \overset{3}{-} (31 \overset{1}{-} 15) \overset{2}{*} 2 \overset{4}{-} 2 = 48 - 16 * 2 - 2 = 48 - 32 - 2 = 16 - 2 = 14$
$66 \overset{3}{-} (65 \overset{1}{-} 47) \overset{2}{:} 6 \overset{4}{+} 3 = 66 - 18 : 6 + 3 = 66 - 3 + 3 = 66$
$54 \overset{2}{:} (13 \overset{1}{-} 10) \overset{3}{*} 2 \overset{4}{+} 36 = 54 : 3 * 2 + 36 = 18 * 2 + 36 = 36 + 36 = 72$
Пожауйста, оцените решение