6+3.4= 5-0.7= 0.5÷100= 0.35+0.65=
2.76+0.4= 0.5×2.4= 6.12-0.6= 10×0.45=
0.4×0.05= 4÷0.5= 4.7+5.5= 0.1-0.01=
①3.78×99+3.78
②47.3÷8÷0.125
③4.05÷0.81+2.4
④7.46+3.12+6.88-1.46
⑤1.76-[(0.74-0.26)÷0.8]
②由30个百分之一组成的两位小数是。
5.3595.37 3192000319万 5.6÷0.455.6