2.4×5= 0.22×5= 1-0.85= 2.3×4.1+5.7=
22.6-3.4-2.6= 12÷0.01 = 0÷0.42= 2.4a+6a=
0.85+0.25= 0.1×0.1+0.1×0.1=
①(2.7+3)x=57
②2.85+2.5x=15.35
③15.5-5x=5.5
0.58÷0.5= *76÷25= 0.427÷6.1=
6×4=24 6.6×3.4=22.44 6.66×33.4=222.444
6.666×333.4=
6.6666×3333.4=