直接写出得数.
①2.5×3.5×0.4=②25.78﹣14.2﹣5.78=③9﹣9÷11=④8×12.5%=
⑤99×99=⑥12×(+
)=⑦1﹣1÷9=⑧
=
2222×17+3333×4+6666×9
7.68﹣3.56+2.32﹣5.44
1.25×3.2×0.25
(0.625×6.8+0.625×4.2﹣0.625)÷0.625
300÷0.125÷0.8
4000﹣1﹣2﹣3﹣…﹣77﹣78.
直接写出下面各题的得数:
(1)175%+=(2)10÷10%=(3)
﹣
÷4=(4)
+
×
=
(5)1×
+
÷
=(6)
=(7)(9.9+
)÷0.9=(8)0.9+99×0.9=
(9)×
÷
×
=(10)(9.3×
﹣7.3)÷
=
计算(能简算的要简算)
7.24×0.1+0.5×72.4+0.049×724+
+
+
2012÷2012
(3+÷
+3)﹣(7×
÷7×
)
计算(写出计算过程,能简算的要简算)
2﹣(6÷0.5﹣3×3)÷5+5×0.84×(
+
﹣
)÷
1.25×3.45×6.789+3.75×1.15×1.211.