问题
解答题
计算: (1)(2
(2)(5
|
答案
(1)原式=2
×12
-36
×1 3 6
=2
-372 2
=12
-32 2
=9
;2
(2)原式=5
÷48
-63
÷27
+43
÷15 3
=5
-616
+49 5
=20-18+45
=2+4
.5
计算: (1)(2
(2)(5
|
(1)原式=2
×12
-36
×1 3 6
=2
-372 2
=12
-32 2
=9
;2
(2)原式=5
÷48
-63
÷27
+43
÷15 3
=5
-616
+49 5
=20-18+45
=2+4
.5