口算
730﹣250= 260+90= 300×13= 8400÷40= 770+140= 2400÷200=
11×500= 9900÷900= 62万﹣25万= 18万+75万= （25×7）×4= 24×5=
相关试题
口算
730﹣250= 260+90= 300×13= 8400÷40= 770+140= 2400÷200=
11×500= 9900÷900= 62万﹣25万= 18万+75万= （25×7）×4= 24×5=
×8=
÷2=
÷
=
×
=
﹣
= 6.8÷10%=
×
= 1÷
=
÷60%=
=
×
=
×
﹦ 9÷
﹦
÷
﹦ 1×
÷1×
﹦
﹢
﹦
×2﹦ 27×
﹦ 0÷
﹦
÷1
÷
×
×9﹦
÷6= 15÷
=
×
=
÷
= 42×
=
﹣60%=
=
= 1÷
=
×12=
×18÷3=
÷
=（
﹣
）×
=
×
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