Составь программу действий и вычисли:
36 * 4 − (15 + 25) * 3 + 48 : 24 * 9;
5 * (23 − 27 : 3) + 600 : 10 : 5 − 64 : (15 − 7).
$36 \overset{2}{*} 4 \overset{6}{-} (15 \overset{1}{+} 25) \overset{3}{*} 3 \overset{7}{+} 48 \overset{4}{:} 24 \overset{5}{*} 9 = 144 - 40 * 3 + 2 * 9 = 144 - 120 + 18 = 24 + 18 = 42$
1) 15 + 25 = 40;
2) 36 * 4 = (30 + 6) * 4 = 30 * 4 + 6 * 4 = 120 + 24 = 144;
3) 40 * 3 = 120;
4) 48 : 24 = 2;
5) 2 * 9 = 18;
6) 144 − 120 = 24;
7) 24 + 18 = 42.
$5 \overset{4}{*} (23 \overset{2}{-} 27 \overset{1}{:} 3) \overset{8}{+} 600 \overset{5}{:} 10 \overset{6}{:} 5 \overset{9}{-} 64 \overset{7}{:} (15 \overset{3}{-} 7) = 5 * (23 - 9) + 60 : 5 - 64 : 8 = 5 * 14 + 12 - 8 = 70 + 12 - 8 = 82 - 8 = 74$
1) 27 : 3 = 9;
2) 23 − 9 = 14;
3) 15 − 7 = 8;
4) 5 * 14 = (10 + 4) * 5 = 10 * 5 + 4 * 5 = 50 + 20 = 70;
5) 600 : 10 = 60;
6) 60 : 5 = (50 + 10) : 5 = 50 : 5 + 10 : 5 = 10 + 2 = 12;
7) 64 : 8 = 8;
8) 70 + 12 = 82;
9) 82 − 8 = 74.
Пожауйста, оцените решение
