问题 解答题
直接写出得数
0.9+0.4=
1.8+0.9=1-0.3=1.5-0.7=
3-2.6=5.3+4.6=4+3.5=7-2.9=
2
10
+
5
10
=
9
10
-
5
10
=
7
10
+1=
19
100
-
7
100
=
10-9×0=3×5×40=3×7×4=330÷3×10=
答案

0.9+0.4=1.3,1.8+0.9=2.7,1-0.3=0.7,1.5-0.7=0.8,
3-2.6=0.4,5.3+4.6=9.9,4+3.5=7.5,7-2.9=4.1,
2
10
+
5
10
=
7
10
9
10
-
5
10
=
2
5
7
10
+1=1
7
10
19
100
-
7
100
=
3
25
10-9×0=10,3×5×40=600,3×7×4=84,330÷3×10=1100.

问答题 简答题
问答题 简答题