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702×101=70.2×;3.45×0.45=×45;3.7÷0.25÷4=3.7÷(0.254);45×9.9=45×10-45×.

题目详情
702×101=70.2×______;         
3.45×0.45=______×45;
3.7÷0.25÷4=3.7÷(0.25______4);
45×9.9=45×10-45×______.
▼优质解答
答案和解析
(1)702×101
=(702÷10)×(101×10)
=70.2×1010; 
        
(2)3.45×0.45
=(3.45÷100)×(0.45×100)
=0.0345×45;

(3)3.7÷0.25÷4=3.7÷(0.25×4);

(4)45×9.9
=45×(10-0.1)
=45×10-45×0.1.
故答案为:1010,0.0345,×,0.1.