27×12﹣286÷13 25×294×4 7.02﹣4.63=（339﹣67）×15÷24 4000÷125÷8 6.47+0.58=
直接写出得数．×=÷=÷= 1.8÷= 0.2÷3=÷=×=××0=×÷×= 18÷÷=
你能直接写出下列各题的结果吗？试试看×=÷=××= 4.5%=×12=÷4= （+）×== %
计算．×÷÷××÷6×÷7÷．
直接写得数．= 24÷======
直接写出得数． 12×=÷= 0÷=﹣= 12×（×）=×=÷= 20÷=+=×90×=
×
=
÷
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÷
= 1.8÷
= 0.2÷3=
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=
×
=
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×0=
×
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×
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=
×
=
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×
×
= 
×12=
÷4= 
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=
= %
×
÷
÷
×
×
÷6×
÷7÷
．
= 24÷
=
=
=
=
=
=
=
÷
= 0÷
=
﹣
= 12×（
×
×
=
÷
= 20÷
=
+
=
×90×
=
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