登录
$4\frac{2}{}$的分数单位是()，它有()个这样的分数单位，如果再加上()
答案
$\frac{1}{7}$
30
5
30
5
4. $\frac{( )}{8}$的分数单位是（
$\frac{1}{8}$
），它有（5
）个这样的分数单位，如果再加上（11
）个这样的分数单位，它就是最小的质数了。答案
$\frac{1}{8}$ 5 11
5. 已知$a÷ b=4$（$a$，$b$都是非0自然数），那么$a$和$b$的最大公因数是（
$b$
），最小公倍数是（$a$
）。答案
$b$ $a$
6. 在○里填上“＞”“＜”或“=”。
$2\dfrac{3}{7} ○ 2\dfrac{4}{7}$
$\dfrac{4}{5} ○ \dfrac{3}{4}$
$\dfrac{5}{6} ○ \dfrac{15}{18}$
$\dfrac{8}{5}×\dfrac{3}{7} ○ \dfrac{3}{7}$
$2\dfrac{3}{7} ○ 2\dfrac{4}{7}$
$\dfrac{4}{5} ○ \dfrac{3}{4}$
$\dfrac{5}{6} ○ \dfrac{15}{18}$
$\dfrac{8}{5}×\dfrac{3}{7} ○ \dfrac{3}{7}$
答案
$＜$ $＞$ $=$ $＞$
7. 从一根36米长的铁丝上截下它的$\frac{2}{3}$焊成一个正方体框架，这个正方体框架的棱长是（
2
）米，体积是（8
）立方米。答案
2 8
8. 一个平行四边形相邻两边的长分别是$\frac{8}{3}$分米、$\frac{3}{8}$分米，高是$\frac{6}{7}$分米，这个平行四边形的面积是（ ）平方分米。
答案
$\frac{9}{28}$
9. 用直线上的点表示$\frac{2}{5}$、$\frac{7}{10}$、$1\frac{1}{2}$和$\frac{12}{5}$。
答案
$\frac{2}{5}=\frac{4}{10}$
$\frac{7}{10}=\frac{7}{10}$
$1\frac{1}{2}=1\frac{5}{10}$
$\frac{12}{5}=2\frac{4}{10}$
将直线上相邻两个整数之间的线段平均分成10份，每份代表$\frac{1}{10}$：
1. 从0点向右数第4个等分点，标注$\frac{2}{5}$
2. 从0点向右数第7个等分点，标注$\frac{7}{10}$
3. 从1点向右数第5个等分点，标注$1\frac{1}{2}$
4. 从2点向右数第4个等分点，标注$\frac{12}{5}$
$\frac{7}{10}=\frac{7}{10}$
$1\frac{1}{2}=1\frac{5}{10}$
$\frac{12}{5}=2\frac{4}{10}$
将直线上相邻两个整数之间的线段平均分成10份，每份代表$\frac{1}{10}$：
1. 从0点向右数第4个等分点，标注$\frac{2}{5}$
2. 从0点向右数第7个等分点，标注$\frac{7}{10}$
3. 从1点向右数第5个等分点，标注$1\frac{1}{2}$
4. 从2点向右数第4个等分点，标注$\frac{12}{5}$
$＜seed:tool_call_never_used_51bce0c785ca2f68081bfa7d91973934＞＜/RichMediaShow＞＜[PLHD86_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜/doubaothinking_never_used_51bce0c785ca2f68081bfa7d91973934＞＜[PLHD58_never_used_51bce0c785ca2f68081bfa7d91973934]＞$$＜/seed:tool_call_never_used_51bce0c785ca2f68081bfa7d91973934＞＜[PLHD84_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[SILENT_never_used_51bce0c785ca2f68081bfa7d91973934]＞$＜|paragraph|$＞:＜[SPEAK_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜hiddenthink＞＜[eotu_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜/RichMediaCreation＞＜[PLHD99_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD61_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD57_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD65_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜$|superscript|＞:＜|FCResponseBegin|$＞＜[PLHD61_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜escapeShell ＜RichMediaCreation＞＜/RichMediaReference＞＜[PLHD71_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[EOGP_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜$|image|$＞:＜[PLHD69_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[/audio_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[eou_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[MASK_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD66_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[SILENT_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜/RichMediaCreation＞＜[PLHD65_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[EOI_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD75_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜escapeShell ＜[PLHD56_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD77_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[SPEAK_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜parameter_never_used_51bce0c785ca2f68081bfa7d91973934=＜[PLHD82_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜$|video|$＞:＜/reflection_never_used_51bce0c785ca2f68081bfa7d91973934＞＜[PLHD79_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD79_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜doubao_withdraw＞＜[PLHD85_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD70_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD78_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD93_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜function_never_used_51bce0c785ca2f68081bfa7d91973934=＜[PLHD61_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜RichMediaCreation＞＜hiddenthink＞＜[PLHD68_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD82_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD73_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[CLS_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD95_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜/RichMediaCreation＞＜$|video|$＞:＜[PLHD95_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD65_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[SOGP_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜hiddenthink＞＜[PLHD88_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[SOG_never_used_51bce0c785ca2f68081bfa7d91973934]＞$$＜[PLHD65_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD93_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜hiddenthink＞＜[/audio_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD67_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD97_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD95_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[UNK_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD91_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[eou_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜seed:tool_call_never_used_51bce0c785ca2f68081bfa7d91973934＞＜[PLHD91_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜/RichMediaReference＞＜[PLHD58_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD57_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜escapeShell ＜[PLHD96_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜RichMediaReference＞＜/RichMediaShow＞＜[PLHD80_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD56_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[EOGP_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜/reflection_never_used_51bce0c785ca2f68081bfa7d91973934＞＜[PLHD73_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD86_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD57_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD90_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[audio_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[MASK_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD60_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜RichMediaCreation＞＜[EOG_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[botu_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD100_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜/think_never_used_51bce0c785ca2f68081bfa7d91973934＞$$＜[EOGP_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜/RichMediaShow＞＜[PLHD97_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜reflection_never_used_51bce0c785ca2f68081bfa7d91973934＞$ $＜[SOGP_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜parameter_never_used_51bce0c785ca2f68081bfa7d91973934=＜/function_never_used_51bce0c785ca2f68081bfa7d91973934＞＜hiddenthink＞＜doubao_withdraw＞＜$|superscript|$＞:＜function_never_used_51bce0c785ca2f68081bfa7d91973934=＜[PLHD78_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜doubaothinking_never_used_51bce0c785ca2f68081bfa7d91973934＞＜[SPEAK_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD93_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD86_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜/function_never_used_51bce0c785ca2f68081bfa7d91973934＞＜[PLHD80_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜/think_never_used_51bce0c785ca2f68081bfa7d91973934＞＜[PLHD81_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜$|superscript|$＞:＜/escapeShell＞＜[PLHD55_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[eou_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD90_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜RichMediaReference＞＜[PLHD93_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[EOG_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD87_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜$|FCResponseBegin|$＞＜[SEP_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜$|superscript|$＞:＜[PLHD85_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD89_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD79_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜/think_never_used_51bce0c785ca2f68081bfa7d91973934＞＜[PLHD64_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD82_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD77_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD65_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD64_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD81_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜$|FCResponseEnd|$＞＜[PLHD76_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜RichMediaShow＞＜answer_never_used_51bce0c785ca2f68081bfa7d91973934＞＜hiddenthink＞＜[PLHD99_never_used_51bce0c785ca2f68081bfa7d91973934]＞＜[PLHD68_never_used_51bce0c785ca2f68081bfa7d91973934]＞$
答案
未获取到有效数学题干信息，请补充完整题目内容后再进行解答。
11. 右图是用棱长为1厘米的正方体摆成的物体，这个物体的表面积是（
34
）平方厘米，体积是（10
）立方厘米。答案
34 10
四、自主探索，动手操作。（共9分）
1. 下图中正方形的面积是5平方厘米，请在图中用阴影表示$\frac{5}{8}$平方厘米。（2分）
1. 下图中正方形的面积是5平方厘米，请在图中用阴影表示$\frac{5}{8}$平方厘米。（2分）
答案
