直接写得数． 0.7×5= 0.54÷6= 0.01×3.5= 0.09×8×125=17+2.04= 2.5×0.4= 4.2÷0.1= 1.2÷0.12×0.12=
直接写出得数 1﹣0.375= 0.125×8= 280﹣45= 1.3÷0.25= 400÷600= 8.64×100=+=﹣=×=÷= 12×= 6÷=
直接写出得数 0.5×400= 568﹣198=÷= 1÷﹣÷1=×12= 1.7+3.03= 13.5﹣5= 10﹣﹣=
24×0.5=+= 6﹣6÷6= 20×20%= 0.33= 7.2÷0.08= 4÷= 12.5×6.4=﹣= 121×=
直接写出得数 6÷= 19÷=﹣=×= 0.37+1.6= 4.8÷0.8= 1+8%= 2.5÷1.25= 0÷=﹣=
直接写出得数． 2306+400= 101﹣52=×=（0.25）2= 7.4﹣4=×30%= 6÷17= 0.3+5= 1÷= 41.64÷6.9≈ 0.24÷0.8=÷2=
+
=
=
×
=
÷
= 12×
= 6÷
=
÷
=
﹣
×12= 1.7+3.03=
﹣
=
+
= 6﹣6÷6= 20×20%=
= 12.5×6.4=
﹣
= 121×
=
= 19÷
=
﹣
=
×
=
=
=
×
=（0.25）2=
×30%= 6÷17= 0.3+5=
= 41.64÷6.9≈ 0.24÷0.8=
÷2=
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