问题
解答题
计算: (1)[47-(18.75-1÷
(2)
|
答案
(1)原式=[47-(18
-3 4
)×15 8
]÷0.46=[47-56 25
×135 8
]×56 25
=50 23
×46 5
=20;100 46
(2)原式=
=-8+48
×5 4 5 4
=40 25 16
.128 5
计算: (1)[47-(18.75-1÷
(2)
|
(1)原式=[47-(18
-3 4
)×15 8
]÷0.46=[47-56 25
×135 8
]×56 25
=50 23
×46 5
=20;100 46
(2)原式=
=-8+48
×5 4 5 4
=40 25 16
.128 5