$18 \overset{1}{*} 4 \overset{2}{:} 9 \overset{3}{+} 36 = 44$
1) 18 * 4 = (10 + 8) * 4 = 40 + 32 = 72
2) 72 : 9 = 8
3) 8 + 36 = 44
 
$28 \overset{3}{-} 600 \overset{1}{:} 10 \overset{2}{:} 15 = 24$
1) 600 : 10 = 60
2) 60 : 15 = 4
3) 28 − 4 = 24
 
$80 \overset{1}{:} 16 \overset{2}{+} 39 \overset{3}{-} 16 = 28$
1) 80 : 16 = 5
2) 5 + 39 = 44
3) 44 − 16 = 28
 
$32 \overset{1}{*} 3 \overset{3}{-} 160 \overset{2}{:} 10 \overset{4}{-} 45 = 35$
1) 32 * 3 = (30 + 2) * 3 = 90 + 6 = 96
2) 160 : 10 = 16
3) 96 − 16 = 80
4) 80 − 45 = 35
 
$64 \overset{2}{+} 100 \overset{1}{*} 3 \overset{3}{-} 230 = 134$
1) 100 * 3 = 300
2) 64 + 300 = 364
3) 364 − 230 = 134
 
$500 \overset{1}{:} 100 \overset{2}{*} 14 \overset{3}{+} 30 = 100$
1) 500 : 100 = 5
2) 5 * 14 = 5 * (10 + 4) = 50 + 20 = 70
3) 70 + 30 = 100
 
24 < 28 < 35 < 44 < 100 < 134
134 = 100 + 30 + 4