长方形的面积是18平方厘米，宽3厘米．长多少厘米？
直接写出得数． 16×=×=×=÷=÷= 9÷=××=
直接写得数×5=÷= 10×=÷=×÷×= 99×+= 3﹣﹣= 1÷4×= （）÷6=÷÷1=
直接写出得数．×40== 25×==== 1﹣50%=÷==×=
直接写得数．×=÷2=×14= 10×=×2=×=÷=÷=
直接写出得数×10=+= 52×= 9÷=÷= 11﹣= 0÷×=﹣+= 1÷9×=
=
×
=
×
=
÷
=
÷
= 9÷
=
×
×
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×5=
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= 10×
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÷
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×
÷
×
+
= 3﹣
﹣
= 1÷4×
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）÷6=
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÷1=
×40=
= 25×
=
=
=
= 1﹣50%=
÷
=
=
×
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×
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÷2=
×14= 10×
=
×2=
×
=
÷
=
÷
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×10=
+
= 52×
=
=
÷
= 11﹣
=
×
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﹣
+
= 1÷9×
=
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