问题
解答题
(1)10与8.7的和,除以4.5与1.1的差,商是多少?
(2)2.7与4.5的和除以12,得出的商再乘以0.3,积是多少?
答案
(1)(10+8.7)÷(4.5-1.1),
=18.7÷3.4,
=5.5;
答:商是5.5.
(2)[(2.7+4.5)÷12]×0.3,
=[7.2÷12]×0.3,
=0.6×0.3,
=0.18;
答:积是0.18.
(1)10与8.7的和,除以4.5与1.1的差,商是多少?
(2)2.7与4.5的和除以12,得出的商再乘以0.3,积是多少?
(1)(10+8.7)÷(4.5-1.1),
=18.7÷3.4,
=5.5;
答:商是5.5.
(2)[(2.7+4.5)÷12]×0.3,
=[7.2÷12]×0.3,
=0.6×0.3,
=0.18;
答:积是0.18.