口算.18÷÷= ; 1﹣×= ; 4﹣()= 3 ;= ; ()÷= ; ()÷= .
直接写出计算结果.1.7×0.5= 4÷0.8= 5.6﹣2.3= 0.125×4=1.44÷1.2= 3.2÷1= 3.07×100= 1.8×5=0.36÷3.6= 9.6÷1.2= 0÷0.9= 0.1×0.12=1.5÷0.3×0.2= 12.5+12.5÷12.5= 0.6+0.6÷0.6﹣0.6= 4.2×0.7+4.2×0.3=(8.5﹣1.5)÷0.1= 20﹣3.7﹣6.3=
4.5+5.5= 0.43×100= 9.8﹣4.8= 2.5÷100=0.7+0.23= 100÷1000= 3.4×0.2= 0.9﹣0.09=0.8×6= 0,5×0.1= 1÷0.5= 5,6÷1=32﹣6= 2.75+1.25= 2.5×4= 1.25×8=0.81÷3÷3= 600÷25÷4= 0.125×32×8= 1.7×0.25×4=
3×1.16= 0.25×12= 1.2÷4= 1.35×6= 1.68÷0.3=0.54×101= 6.5﹣5= 10﹣0.18﹣0.12= 5.79+2.63+4.21= 0.64÷1.6×1.7=
直接写出得数.1﹣0.25= 3.4+1.6= 4.3﹣0.8= 2.7+8.4=5×0.08= 1.5×4= 3.06÷1000= 4.9×1000=14×0.2= 0.5×0.3= 3.26÷100= 0.25×4=
直接写出得数:0.63+0.37= 6.8﹣0.25= 6.4+3.6×2=2.5×2.8×4= 36×20= 9.2÷0.01=6.8﹣6.8×0.1= 21.3﹣3= 63+3.7﹣6.3+3.7=