题目内容

直接写出得数.
①30-19.02=
②3.125+1
7
8
=
③0.4×0.4=
④1÷0.1-1×0.1=
⑤1-0.94+0.06=
⑥0.056×
1
7
=
分析:利用小数加减方法,以及四则运算解答.
解答:解:
①30-19.02=10.98,
②3.125+1
7
8
=5,
③0.4×0.4=0.16,
④1÷0.1-1×0.1=9.9,
⑤1-0.94+0.06=0.12,
⑥0.056×
1
7
=0.008;
故答案为:10.98,5,0.16,9.9,0.12,0.008.
点评:根据小数加减计算方法,以及四则运算顺序细心计算.
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