直接写出得数．
90÷3= 12×4= 68÷2= 200+3000=
80﹣46= 77÷7= 50×3= 5600﹣600=
54+36= 42+35= 
+
= 4000+3000=
37+25= 69÷3= 
+
= 10000﹣4000=
直接写出得数．
90÷3= 12×4= 68÷2= 200+3000=
80﹣46= 77÷7= 50×3= 5600﹣600=
54+36= 42+35= += 4000+3000=
37+25= 69÷3= += 10000﹣4000=
=
×
=
×
=
÷
=
÷
= 9÷
=
×
×
=
×5=
÷
= 10×
=
÷
=
×
÷
×
+
= 3﹣
﹣
= 1÷4×
=
）÷6=
÷
÷1=
×40=
= 25×
=
=
=
= 1﹣50%=
÷
=
=
×
=
×
=
÷2=
×14= 10×
=
×2=
×
=
÷
=
÷
=
×10=
+
= 52×
=
=
÷
= 11﹣
=
×
=
﹣
+
= 1÷9×
=
粤公网安备 44130202000953号