50×40= 927÷3= 40×60= 107×90=
120×50= 900÷30= 30×170= 5400÷90=
91×30= 25×400= 72×60= 23×70=
240×90= 28×50= 13×70= 35×101=
39×28≈ 19×585≈ 811×79≈ 191×202≈
相关试题
50×40= 927÷3= 40×60= 107×90=
120×50= 900÷30= 30×170= 5400÷90=
91×30= 25×400= 72×60= 23×70=
240×90= 28×50= 13×70= 35×101=
39×28≈ 19×585≈ 811×79≈ 191×202≈
×0×17=
÷4÷
÷
= 57×
=
﹣
+
=
×
×
= 1÷
=（6+
）×
=
﹣
=
+
=
=
×6÷
+6×
=
×
=
+
）×16= 1÷
=
×
= 24%×5=
÷
= 4﹣
= 0÷（1+
）=
= 1.75+
=
×
×12=
=
÷
= 2×（
+
）=
×
÷
=
=
= 6.3×10%=
= 7×
=
= 40%﹣0.25=
=
+
÷4=
×
÷
×
= 3÷
﹣
÷0.8%= 0.705+3.35= 1.5×（
）= 0.375×0.375=
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