1.45+15×6=2.250÷5×8=3.6×5÷2×4=4.30×3+8=5.400÷4+20×5=6.10+12÷3+20=7.(80÷20+80)÷4=8.70+(100-10×5)=9.360÷40=10.40×20=11.80-25=12.70+45=13.90×2=14.16×6=15.300×6=16.540÷9=17.30×20=18.400÷4=19.350-80=20.160+70=21.18-64÷8=22.42÷6+20=23.40-5×7=24.80+60÷3=25.41+18÷2=26.75-11×5=27.42+7-29=28.5600÷80=29.25×16=30.120×25=31.36×11=32.1025÷25=33....