直接写出得数.40×0.25= 1.25×0.8= 0.1÷0.01= 0.6+1.9= 3.5-2.25= 12.8÷4= 12+13= 58-18=

2025-06-24 09:54:32
推荐回答(1个)
回答1:

解:40×0.25=10, 1.25×0.8=1, 0.1÷0.01=10, 0.6+1.9=2.5,
3.5-2.25=1.25, 12.8÷4=3.2,
1
2
+
1
3
=
5
6
5
8
-
1
8
=0.5,
12×
5
6
=10,
1
10
=10,
3
16
×
4
9
=
1
12
3
4
÷
1
4
=3.