问题
解答题
用递等式计算. (1)
(2)1.05×(3.8-0.8)÷6.3. |
答案
(1)
÷〔9 20
×(1 2
+2 5
)〕,4 5
=
÷〔9 20
×1 2
〕,6 5
=
×9 20
,5 3
=
;3 4
(2)1.05×(3.8-0.8)÷6.3,
=1.05×3÷6.3,
=4.15÷6.3,
=
.83 126
用递等式计算. (1)
(2)1.05×(3.8-0.8)÷6.3. |
(1)
÷〔9 20
×(1 2
+2 5
)〕,4 5
=
÷〔9 20
×1 2
〕,6 5
=
×9 20
,5 3
=
;3 4
(2)1.05×(3.8-0.8)÷6.3,
=1.05×3÷6.3,
=4.15÷6.3,
=
.83 126