问题 解答题
直接写出运算结果:
8.4-7+1.6=______;
3-2
1
3
=______;
1÷1
6
7
=______;
1-
3
4
-0.25
=______;
0.25×0.9×4=______;36×(
1
4
-
1
9
)=______;
1
3
÷
1
3
×3=______;
1
2
-
1
2
÷1=______.
答案

8.4-7+1.6=3; 3-2
1
3
=
2
3
1÷1
6
7
=
7
13
1-
3
4
-0.25
=0;
0.25×0.9×4=0.9;36×(
1
4
-
1
9
)=5;
1
3
÷
1
3
×3=3;
1
2
-
1
2
÷1=1
1
2
故答案为:3;
2
3
7
13
;0;0.9;5;3;1
1
2

计算题
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