口算：
20×50= 24×5= 304×6= 12×30=
0÷128= 58×0= 630÷7= 4000÷5=
47+97= 100﹣53= 312÷3= 20﹣6×3=
824÷4= 1.4+2.3= 0.6+1.7= 1.3﹣0.8=
相关试题
口算：
20×50= 24×5= 304×6= 12×30=
0÷128= 58×0= 630÷7= 4000÷5=
47+97= 100﹣53= 312÷3= 20﹣6×3=
824÷4= 1.4+2.3= 0.6+1.7= 1.3﹣0.8=
÷5=
÷4=
÷2=
÷3=
÷
=
÷
=
÷
÷
=
= 15÷
=
÷
=
÷
=
×
×
=
+
= 1﹣
=
=
=
=
=
=
=
= 1.05×4= 268÷14×0=
= 306﹣16= 5.1+0.09=
﹣
=
÷
= 9
÷3=
×3=
÷5=
×1.6= 15×60%= 25×40%=
=
=
=
=
=
=
=
=
=
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