填一填，认识八个方向．
直接写得数． 3﹣=÷=×= 0÷0.99=÷= 0.75÷0.125=÷= 4×=
直接写出得数 35÷= 1÷10%= 2.875+1= 4﹣2= 0.1÷0.1%= （+）×30%= 2﹣÷75%= 24×（﹣1÷3）=×3=×÷×=
直接写得数．====== 0.375×= 4×÷4×=
直接写得数． 5÷8= 25×2.4= 12﹣= 1.25××0.8=﹣=×4÷4×= 2.4×=（+）×16=
甲数除以乙数的商与乙数除以甲数的商互为倒数（甲、乙均不为0）． ．
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=
÷
=
×
= 0÷0.99=
÷
÷
= 4×
=
= 1÷10%= 2.875+1
= 4﹣2
= 0.1÷0.1%=
+
）×30%= 2﹣
÷75%= 24×（
﹣1÷3）=
×3=
÷
=
=
=
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= 0.375×
= 4×
÷4×
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= 1.25×
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﹣
=
×4÷4×
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+
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