b.
17:(40-23)=17:17=1
c.116-2*(13-10)=116-2*3=116-6=110
d.((102+25)*3-31)*3=((127*3)-31)*3=(381-31)*3=350*3=1050
e.38+(20*(56-26))/10=38+(20*30)/10=38+600/10=38+60=98
f.(7*10-(80-60))*5=(70-20)*5=50*5=250
g.(30/10+97)/(88+12)=(3+97)/100=100/100=1
h.(165*2)/(142-109)=330/33=10
i.2320+(988+(3740-300)-1880)=2320+(988+3440-1880)=2320+2548=4868
j.((202+35)*3-45+170)/2+9=(237*3-125)/2+9=(711-125)/2+9=586/2+9=293+9=302
