#1
а)28+19+32+11=90
б)4×8×6×25=4800
#2
34×7+16×7=350
74,2-74×64=74×2=148
148-74×64=74×64=4736
148-4736=-4588
#1
а)28+19+32+11=90
б)4×8×6×25=4800
#2
34×7+16×7=350
74,2-74×64=74×2=148
148-74×64=74×64=4736
148-4736=-4588