第86页

信息发布者:
36
30
9
$6\frac{1}{2}$
$3 + 7 + 5 + 9 = 24$
$(2 + 6)\times(8 - 5) = 24$
$2a$
C
D
C
D
36
$0.008$
10
$\frac{4}{21}$
$3\frac{1}{4}$
$\frac{5}{2}$
$\frac{4}{9}$
$\frac{7}{12}$
​$=\frac {8}{15}×\frac {5}{4}$​
​$=\frac {2}{3}$​
​$=1+\frac {1}{2021}$​
​$=1 \frac {1}{2021}$​