(1)1÷(1.6×0.5), =1÷0.8, =1.25; 答:商是1.25. (2)(2.6×4+10)÷2, =(10.4+10)÷2, =20.4÷2, =10.2; 答:这个数是10.2. (3)(32.8+3.6)÷4, =36.4÷4, =9.1; 答:乙数是9.1. (4)80.5÷(3+
=80.5÷3.5, =23; 答:这个数是23. (5)(10.1+24.35)÷13×0.6, =34.45÷13×0.6, =2.65×0.6, =1.59; 答:积是1.59. (6)16×2÷3.2-4.6, =32÷3.2-4.6, =10-4.6, =5.4(米). 答:下底是5.4米. |