7560÷（125﹣113）+2786．
÷=÷12=÷= 1÷= 5÷=÷21=÷=÷=÷=÷=×=﹣=
= 4÷==÷2=×= 100÷= 88÷= 4×=
直接写得数． 5÷20%= 1﹣80%= 2.5%×40= 0.8÷1%=
直接写得数．×=÷=÷4= 1÷= 0.25÷0375= 28÷=÷= 9÷= 12÷= 0÷×=
直接写得数：×4= ； 2﹣= 1 ；÷= ；×= ；×= ；÷= ；×= ；+= ； 0÷= ；×18= ；×= ；÷= ．
÷
=
÷12=
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= 1÷
=
=
÷21=
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=
÷
=
÷
=
÷
=
×
=
﹣
=
= 4÷
=
=
÷2=
×
= 100÷
= 88÷
= 4×
=
1﹣80%= 2.5%×40= 0.8÷1%=
×
=
÷
÷4=
= 0.25÷0375= 28÷
=
÷
= 9÷
= 12÷
=
×
=
×4= ； 2﹣
= 1
；
÷
= ；
×
×
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÷
= ；
×
= ；
+
= ；
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×18= ；
×
= ；
÷
= ．
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