Verified answer

56:14 + 14*7 -56 = 46

56:14 = 4

14*7= 98

98+4 = 102

102-56=46

92-70:5+15 = 93

70:5= 14

92-14= 78

78+15=93

90*4-63:(56397-56390)= 351

56397-56390=7

90*4 =360

63:7=9

360-9=351