问题
解答题
|
答案
(1)(
×1 4
+6 5
)÷1 2 4 5
=(
+3 10
)÷1 2 4 5
=
×4 5 5 4
=1;
(2)2÷[(
+1 2
)×1 3
]2 5
=2÷[
×5 6
]2 5
=2÷1 3
=2×3
=6;
(3)40%x+16=80
40%x+16-16=80-16
40%x÷40%=64÷40%
x=160.
|
(1)(
×1 4
+6 5
)÷1 2 4 5
=(
+3 10
)÷1 2 4 5
=
×4 5 5 4
=1;
(2)2÷[(
+1 2
)×1 3
]2 5
=2÷[
×5 6
]2 5
=2÷1 3
=2×3
=6;
(3)40%x+16=80
40%x+16-16=80-16
40%x÷40%=64÷40%
x=160.