电子课本网 第6页

第6页

信息发布者:
-12
-0.8
-10
-2
2
0
10
-10
-6
-13
-1.4
2
-3.6
$​-\frac {1}{5}​$
$​\frac {1}{15}​$
$​\frac {1}{6}​$
$​-3\frac {1}{4}​$
7.5
$​2\frac {1}{3}​$
$​-\frac {1}{4}​$
$​=-(12-\frac {1}{7})​$
$​=-11\frac {6}{7}​$
​$=-(5.2-3.14)$​
​$=-2.06$​
$​=-(4.1+15.61)​$
$​=-19.71​$
$​=-(9 \frac {1}{5}+1 \frac {3}{5})​$
$​=-10\frac {4}{5}​$
$​=-(\frac {2}{5}-\frac {3}{10})​$
$​=-\frac {1}{10}​$
$​=3 \frac {1}{3}-1 \frac {3}{4}​$
$​=\frac {19}{12}​$