问题 解答题
直接写出得数
(1)30-19.02=
(2)3.125+1
7
8
=
(3)0.4×0.4=(4)1÷0.1×1÷0.1=
(5)1-0.94+0.66=(6)5.6×
1
7
=
(7)402=(8)(
1
6
+
2
9
)×18=
答案

(1)30-19.02=10.98,(2)3.125+1
7
8
=5,
(3)0.4×0.4=0.16,(4)1÷0.1×1÷0.1=100,
(5)1-0.94+0.66=0.72,(6)5.6×
1
7
=0.8,
(7)402=1600,(8)(
1
6
+
2
9
)×18=7.
故答案为:10.98,5,0.16,100,0.72,0.8,1600,7.

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