直接写出得数
70﹣25= 4000+2000= 800﹣540=
80+720= 900+700= 18÷5=
25÷5= 9×9= 48÷6=
320+80= 1000﹣800= 63+52=
145﹣145= 4×7= 36÷6=
83﹣23=
相关试题
=
=
= 48÷
=
÷
=
×
= 5﹣
=
×
=
+
= 1÷
=
直接写出得数
+3÷
=
×5×
=（
+
）×4= 81÷
=
﹣
=
×10= 5.5+12.4+4.5= 4﹣（0.6+1.9）=
1.9×4×0.5= 0.77+0.33=
=
=43= 8.5b+5b=
=（
）×15= 0.3×2÷0.3×2=
=
=
=
= 21÷
=
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