亚洲激情+欧美激情,无码任你躁久久久久久,我的极品美女老婆,性欧美牲交在线视频,亚洲av高清在线一区二区三区

電子課本網(wǎng) › 第85頁(yè)

第85頁(yè)

信息發(fā)布者：
24
5
19
11
13
2
2
2
3
1
3
5
5
?$\frac {1}{3}$?
5
1
?$\frac {1}{5}$?
?$\frac {9}{20}$?
?$\frac {1}{2}$?
?$\frac {33}{70}$?
＞
=
＜
＜
50.24
25.12
6.28
34.54
?$=\frac {21}{24}-\frac {18}{24}+\frac {4}{24}$?
?$=\frac {1}{8}+\frac {4}{24}$?
?$=\frac {7}{24}$

?
?$=\frac {5}{3}-(\frac {4}{9}+\frac {5}{9})$?
?$=\frac {5}{3}-1$?
?$=\frac {2}{3}$?
?$=\frac {45}{24}-(\frac {16}{24}-\frac {12}{24})$?
?$=\frac {45}{24}-\frac {1}{6}$?
?$=\frac {41}{24}$?
$\begin{aligned}解：x&=15.2÷3.8\\x&=4\end{aligned}$
$\begin{aligned}解：x&=2×0.72\\x&=1.44\end{aligned}$
$\begin{aligned}解：2x&=0.64-0.36\\2x&=0.28\\x&=0.14\end{aligned}$
$\begin{aligned}解：0.7x&=12.6×2\\0.7x&=25.2\\x&=36\end{aligned}$
$\begin{aligned}解：1.2x&=0.3\\x&=0.25\end{aligned}$
$\begin{aligned}解：3x&=66+36\\3x&=102\\x&=34\end{aligned}$
?$10÷2=5(\ \mathrm {cm})$?
?$10×5=50(\ \mathrm {cm}2)$?
?$3.14×5×5÷2=39.25(\ \mathrm {cm}2)$?
?$50-39.25=10.75(\ \mathrm {cm}2)$?
?$18÷2=9(\ \mathrm {cm})$?
?$18×9=162(\ \mathrm {cm}2)$?
?$3.14×9×9÷2=127.17(\ \mathrm {cm}2)$?
?$162-127.17=34.83(\ \mathrm {cm}2)$?
上一頁(yè) 下一頁(yè)