0.5×8=3.6×0.4=39.68×0=47.6×1=
4÷0.5=12÷0.06=12÷1.2=3÷30=
0.15×7=3.2×6 3.2×4=2.5×4×0.36=
0.2 0.8×0.5=6.03×=10×0.6=
0.5×4÷0.5×4=38.5×0×0.38=
2.5×0.4=3.6×0.4=12.5×8=50×0.04=
0.45×12×0.26.2×2.1－2.12.8－2.8×0.15
2.8×1.43＋0.－6.06＋8.5
0.87×3.16 4.646.8×0.75÷0.5
13.75÷0.125–2. 23.4÷7.2
（31.8 3.2×4）÷531.5×4÷(6 3)
0.64×25×7.8 2.22÷2.5 2.5÷2
194－64.8÷1.8×0.936.72÷4.25×9.9
－705×624÷2.4－2.5×0.8
5.12＋2.54＋4..5×17.8×0.8
0.125×0.32×0.259.6 9.6×99
2.8×7.6 1.4×2.8 2.86.3×10.1
0.25×3.2×12.512.5×9.7?12.5×8.7
3.7×91.6 6.3×91.616.84÷40÷0.25
4.2×7.8 2.2×4.22.55×7.1 2.45×7.1
九、解方程4(x 0.3)=4.81.2x-0.8x=9.6
0.5×8=3.6×0.4=39.68×0=47.6×1=
4÷0.5=12÷0.06=12÷1.2=3÷30=
0.15×7=3.2×6 3.2×4=2.5×4×0.36=
0.2 0.8×0.5=6.03×=10×0.6=
0.5×4÷0.5×4=38.5×0×0.38=
2.5×0.4=3.6×0.4=12.5×8=50×0.04=
0.45×12×0.26.2×2.1－2.12.8－2.8×0.15
2.8×1.43＋
0.－6.06＋8.5
0.87×3.16 4.646.8×0.75÷0.5
13.75÷0.125–
2. 23.4÷7.2
（31.8 3.2×4）÷531.5×4÷(6 3)
0.64×25×7.8 2.22÷2.5 2.5÷2
194－64.8÷1.8×0.936.72÷4.25×9.9
－705×624÷2.4－2.5×0.8
5.12＋2.54＋4..5×17.8×0.8
0.125×0.32×0.259.6 9.6×99
2.8×7.6 1.4×2.8 2.86.3×10.1
0.25×3.2×12.512.5×9.7?12.5×8.7
3.7×91.6 6.3×91.616.84÷40÷0.25
4.2×7.8 2.2×4.22.55×7.1 2.45×7.1
九、解方程4(x 0.3)=4.81.2x-0.8x=9.6