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直接写得数. 0.27+2.73= 0.25÷2.5%= 10-0.01= 0.38-0.19= 1-50%= 912×39= 59÷56= 15-18+18-15= 58-14= 9899×(54-

编辑:chaxungu时间:2026-04-27 13:09:21分类:小学数学题库

直接写得数.
0.27+2.73=0.25÷2.5%=10-0.01=0.38-0.19=1-50%=
9
12
×
3
9
=
5
9
÷
5
6
=
1
5
-
1
8
+
1
8
-
1
5
=
5
8
-
1
4
=
98
99
×(
5
4
-25%)=
0.27+2.73=3,0.25÷2.5%=10,10-0.01=9.99,0.38-0.19=0.19,1-50%=0.5,
9
12
×
3
9
=
1
4
,
5
9
÷
5
6
=
2
3
,
1
5
-
1
8
+
1
8
-
1
5
=0,
5
8
-
1
4
=
3
8
,
98
99
×(
5
4
-25%)=
98
99
.