(海州区)直接写出得数3.2÷0.01= ;6.8﹣10.8=; 51×39≈ ;1÷×3=;8×125%=; 7.2+8=; 10.8÷1.08×0= ;(0.25+)÷10=
1.8×2.4- 1.8×0.24= 180×2.4= 180×0.24= 0.18×0.24= 0.18×0.24=
x : =:
x - x=18.7
15.8-(6+÷12.5%)
10-÷×1