计算（直接写得数）：①87.58﹣（7.58﹣3.8）= ②×37+62×80%+0.8= ③[+×（﹣0.375）]÷= ④如果6X+=0.8×1.5，那么X= ；如果，那么X= ．
直接写出计算结果．== 8×= 12=== 2﹣= 1=
直接写出得数． 3×=÷0.5= 9÷=÷﹣= （1﹣）÷= 2÷×=
直接写得数．×6= 30×=÷= 20÷=+=××0=×= 1÷×= 5.6÷0.08= 39××=
直接写得数．﹣=÷=×=×= 10×=×=÷=÷= 15×=÷=+=÷22=
直接写出得数．=========．
×37+62×80%+0.8= 
+
×（
﹣0.375）]÷
= 
=0.8×1.5，那么X= ；如果
，那么X= ．×37+62×80%+0.8= +×（﹣0.375）]÷= =0.8×1.5，那么X= ；如果，那么X= ．
=
= 8×
= 12
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=
= 2﹣
= 1
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=
÷0.5=
=
÷
﹣
）÷
×
=
×6= 30×
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÷
= 20÷
=
+
=
×
×0=
×
= 1÷
=
×
=
﹣
=
÷
=
×
=
×
= 10×
=
×
=
÷
=
÷
= 15×
=
÷
=
+
=
÷22=
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=
=
=
=
=
=
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=
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