口算．
32×30=
17×3=
23×11=
10÷7=
300×3=
756﹣45= 3000÷6= 190×2= 790﹣450= 40×80=
720+58= 24×5= 198+302= 191×61≈ 309×42≈
相关试题
口算．
32×30=
17×3=
23×11=
10÷7=
300×3=
756﹣45= 3000÷6= 190×2= 790﹣450= 40×80=
720+58= 24×5= 198+302= 191×61≈ 309×42≈
×3= 0÷
= 0.5+
=
×
=
=
÷
= 2﹣
﹣
= 16.5+4.7=
÷3÷
=
×
= 15÷1%= 0.52= 3.14×6=
÷
= 0.375×
=
×3÷
21÷
÷
24÷
．
= 9÷
=
﹣
=
+
=
×75%= 1÷
×
）÷2= 1﹣（
+
）=
×
= 6.4×
﹣
= 1÷
×
= 0.6÷
=
÷0.875﹣1=
粤公网安备 44130202000953号