Подробно 55.987 * (59*90-177*30) =

73.280-7.328+30.280=

89.500+47*300-3.600=

4 * (8.725-7.852) * 100-9.200=

(294.511-286.411) : 27-300=

(98+333*10-3.298) * 100=

55.987 * (59*90-177*30) = 0

1) 59*90=5.310

2) 177*30=5.310

3) 5.310-5.310=0

4) 55.987*0=0

73.280-7.328+30.280=96.232

1) 73.280-7.328=65.952

2) 65.952+30.280=96.232

89.500+47*300-3.600=100.000

1) 47*300=14.100

2) 89.500+14.100=103.600

3) 103.600-3.600=100.000

4 * (8.725-7.852) * 100-9.200=350800

1) 8.725-7.852=900

2) 900*4=3600

3) 3600*100=360000

3) 360000-9.200=350800

(294.511-286.411) : 27-300=0

1) 294.511-286.411=8100

2) 8100:27=300

3) 300-300=0

(98+333*10-3.298) * 100=13000

1) 333*10=3330

2) 3330+98=3428

3) 3428-3298=130

4) 130*100=13000

надеюсь правильно)