《2025年口算训练六年级数学上册人教版双色升级版》

用百分数表示商。
$1÷2= ( )\%$
$2÷5= ( )\%$
$3÷4= ( )\%$
$1÷4= ( )\%$
$7÷10= ( )\%$
$9÷20= ( )\%$
$3÷20= ( )\%$
$1÷20= ( )\%$
$7÷20= ( )\%$
$11÷20= ( )\%$
$13÷20= ( )\%$
$17÷20= ( )\%$
$1÷25= ( )\%$
$7÷25= ( )\%$
$9÷25= ( )\%$
$14÷25= ( )\%$
$27÷50= ( )\%$
$18÷50= ( )\%$
$72÷50= ( )\%$
$120÷50= ( )\%$

答案： 50
40
75
25
70
45
15
5
35
55
65
85
4
28
36
56
54
36
144
240

$55÷\frac {11}{10}= $
$\frac {8}{25}×125= $
$\frac {1}{18}×22= $
$\frac {11}{80}×32= $
$\frac {13}{12}×4= $
$\frac {5}{7}÷\frac {1}{5}= $
$12÷\frac {1}{6}= $
$\frac {8}{15}÷\frac {4}{21}= $
$\frac {5}{3}×\frac {7}{20}= $
$\frac {2}{3}÷\frac {8}{15}= $
$\frac {5}{6}÷\frac {12}{5}= $
$\frac {5}{6}×\frac {12}{5}= $
$31÷\frac {31}{48}= $

答案： $55÷\frac {11}{10}=55×\frac {10}{11}=50$
$\frac {8}{25}×125=8×5=40$
$\frac {1}{18}×22=\frac {11}{9}$
$\frac {11}{80}×32=\frac {22}{5}$
$\frac {13}{12}×4=\frac {13}{3}$
$\frac {5}{7}÷\frac {1}{5}=\frac {5}{7}×5=\frac {25}{7}$
$12÷\frac {1}{6}=12×6=72$
$\frac {8}{15}÷\frac {4}{21}=\frac {8}{15}×\frac {21}{4}=\frac {14}{5}$
$\frac {5}{3}×\frac {7}{20}=\frac {7}{12}$
$\frac {2}{3}÷\frac {8}{15}=\frac {2}{3}×\frac {15}{8}=\frac {5}{4}$
$\frac {5}{6}÷\frac {12}{5}=\frac {5}{6}×\frac {5}{12}=\frac {25}{72}$
$\frac {5}{6}×\frac {12}{5}=2$
$31÷\frac {31}{48}=31×\frac {48}{31}=48$

化成百分数。(百分号前保留一位小数)
$\frac {1}{12}\approx $8.3%
$\frac {1}{75}\approx $1.3%
$\frac {1}{3}\approx $33.3%
$\frac {5}{6}\approx $83.3%
$\frac {1}{9}\approx $11.1%
$\frac {1}{11}\approx $9.1%
$\frac {40}{3}\approx $1333.3%
$\frac {10}{9}\approx $111.1%
$\frac {4}{7}\approx $57.1%
$\frac {4}{9}\approx $44.4%
$\frac {2}{23}\approx $8.7%
$\frac {3}{11}\approx $27.3%

答案： 解析：题目要求将分数化为百分数，并且百分号前保留一位小数。
这需要我们进行除法运算，将分数的值计算出来，然后乘以$100$得到百分数，最后按要求保留小数。
答案：
$\frac{1}{12} \approx 8.3\%$
$\frac{1}{75} \approx 1.3\%$
$\frac{1}{3} \approx 33.3\%$
$\frac{5}{6} \approx 83.3\%$
$\frac{1}{9} \approx 11.1\%$
$\frac{1}{11} \approx 9.1\%$
$\frac{40}{3} \approx 1333.3\%$
$\frac{10}{9} \approx 111.1\%$
$\frac{4}{7} \approx 57.1\%$
$\frac{4}{9} \approx 44.4\%$
$\frac{2}{23} \approx 8.7\%$
$\frac{3}{11} \approx 27.3\%$