(1)8470-104×65(2)1.3-3.79+9.7-6.21(3)3.64÷4+4.36×0.25 (4)(-)×4×9(5)÷[×(0.4+)]
网友回答
解:(1)8470-104×65
=8470-6760
=1710;
(2)1.3-3.79+9.7-6.21
=1.3+9.7-(3.79+6.21)
=11-10
=1;
(3)3.64÷4+4.36×0.25
=3.64×0.25+4.36×0.25
=(3.64+4.36)×0.25
=8×0.25
=2;
(4)(-)×4×9
=(-)×36
=×36-×36
=4-3
=1;
(5)÷[×(0.4+)]
=÷[×(+)]
=÷[×]
=÷
=;
故