14х8-((8-3)х5)
(14-5)х8+3х5
70 * 59 =4130
810000 : 60 =13500
228 + 604 =832
890 - 132 = 758
706 - 662 =44
Решаем так
1) 3,15+2,3=5,45
2)0,792-0,78=0,012
3)4,36:5,45=0,8
4)0,012умножить350 =4,2
5)0,8+4,2=5
3/8----------9
1------------x
x=(1*9)/(3/8)=24
2)
a-9/16a=5 1/4
16/16a-9/16a=5 1/4
7/16a=5 1/4
a=(5 1/4)/(7/16)=12
3)
(3.1d-d)/0.2=1.05
2.1d=1.05*0.2
d=0.21/2.1=0.1