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  • 用除法换算习惯单位

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    Ned is an amateur bee keeper. This season, he was able to harvest 40 cups of honey from his hive. He wants to store the honey in  quart  jars. How many jars will Ned need?
    ::奈德是一个业余养蜂员。这个季节,他从蜂窝中收获了40杯蜂蜜。他想把蜂蜜储存在夸特罐子里。奈德需要多少罐?

    In this concept, you will convert customary units of measure using division. 
    ::在此概念中,您将使用分割转换习惯计量单位。

    Converting Customary Units by Dividing
    ::通过区分转换习惯单位

    When converting from a larger unit to a smaller unit, you multiplied by the unit  equivalence . To convert from a smaller unit to a larger unit, divide by the unit equivalence.
    ::从较大单位转换为较小单位时,乘以单位等值。要从较小单位转换为较大单位,除以单位等值。

    Let’s consider pennies.
    ::让我们想想钱吧。

    5,000 pennies = ____ dollars
    ::5 000 便元= 美元

    The penny is a smaller unit than the dollar. You need more of a smaller unit to equal a larger unit. Divide the number of pennies by the unit equivalence. You know that there are 100 pennies in one dollar.
    ::便士比美元小一个单位。 您需要更多的小单位来等同更大的单位。 将便士数除以单位等值。 您知道一美元里有100便士。

    100 pennies = 1 dollar
    ::100美元=1美元

    Divide 5,000 by 100 to get the  equivalent  value in dollars.
    ::将5 000除以100,以获得等值美元的美元。

    5000  ÷  100  =  50

    Therefore, 5,000 pennies is equivalent to 50 dollars.
    ::因此,5 000便士相当于50美元。

    Apply this to your work with converting measurements. Remember to think about the equivalent units of  length ,  capacity  and weight when dividing.
    ::将它应用到您转换测量值的工作 。 在分隔时, 请记住要考虑相应的长度、 容量和重量单位 。

    Here are some equivalence tables.
    ::以下是一些等值表格。

    Customary Units of Length
    ::习惯长度单位

    inch (in.) foot  (ft) yard  (yd) mile  (mi)
    12 1    
      3 1  
        1,760 1

    Customary Units of Weight
    ::体重习惯单位

    ounces  (oz) pounds  (lb) tons (T)
    16 1  
      2,000 1

    Customary Units of Capacity
    ::习惯能力单位

    fluid ounces (fl oz) cups (c) pints (pt) quarts (qt) gallon  (gal)
    8 1      
    16 2 1    
    32 4 2 1  
    128 16 8 4

    1

    Let's look at a conversion problem.
    ::让我们来看看转换的问题。

    5,500 pounds = ____ tons
    ::5 500磅 = 吨

    A pound is smaller than a  ton . To solve this problem, divide the number of pounds by the unit equivalence. 
    ::一磅小于一吨。要解决这个问题,将磅数除以单位等值。

    2,000 pounds = 1 ton 
    ::2000 000磅=1吨

    5,500  ÷  2,000 = 2.75 or  2 3 4  tons
    ::5 500 2 000 = 2.75 或 2 3 4 吨

    Notice that you can write the answer in fraction or decimal form. Therefore, 5,500 pounds is equivalent to 2.75 or  2 3 4  tons.
    ::请注意您可以以小数或小数写出答案。 因此, 5,500磅相当于 2. 75 或 2, 3, 4吨 。

    Examples
    ::实例

    Example 1
    ::例1

    Earlier, you were given a problem about Ned and his honey.
    ::早些时候,有人给了你一个 奈德和他的蜂蜜的问题

    Ned has 40 cups of honey that he wants to store in quart jars. Convert the 40 cups to quarts to find out how many jars Ned will need.
    ::奈德有40杯蜂蜜,他想储存在夸尔特罐中。

    40 cups = _____ quarts
    ::40 杯= 夸特

    First, check if he will multiply or divide. A  cup  is smaller than a quart. Divide when converting a smaller unit to a larger unit.
    ::首先, 请检查他是否会乘或除。 杯子小于夸特。 当将小单位转换为大单位时, 分裂 。

    Then, find the unit equivalence.
    ::然后,找到单位等值。

    4 cups = 1 quart
    ::4杯=1夸特

    Next, divide the number of cups by the unit equivalence.
    ::接下来,将杯数除以单位等值。

    40 ÷ 4 = 10

    40 cups = 10 quarts
    ::40杯=10夸特

    Ned will need 10 jars to store the honey.
    ::奈德需要10罐来储存蜂蜜

    Example 2
    ::例2

    Convert the following unit of measure: 1,250  inches  = _____ feet.
    ::转换以下计量单位:1,250英寸=______英尺。

    To solve this problem,  . Divide the number of inches by the unit equivalence.
    ::要解决这个问题,请将英寸数除以单位等值。

    12 inches = 1 foot
    ::12英寸=1英尺

    1,250 ÷ 12 = 104.16

    The answer is 1,250 inches is equivalent to 104.16 feet.
    ::答案是1,250英寸等于104.16英尺。

    Example 3
    ::例3

    Convert the following unit of measure: 84 inches = ____ feet.
    ::转换以下计量单位:84英寸=____英尺。

    Divide the number of inches by the unit equivalence.
    ::将英寸数除以单位等值。

    12 inches = 1 foot
    ::12英寸=1英尺

    84 ÷ 12 = 7

    The answer is 84 inches is equivalent to 7 feet.
    ::答案是84英寸等于7英尺

    Example 4
    ::例4

    Convert the following unit of measure: 40 cups = ____ pints.
    ::转换以下计量单位:40杯=____品脱。

    Divide the number of cups by the unit equivalence.
    ::将杯数除以单位等值。

    2 cups = 1  pint
    ::2杯=1品脱

    40 ÷ 2 = 20

    The answer is 40 cups is equivalent to 20 pints.
    ::答案是40杯 相当于20品脱

    Example 5
    ::例5

    Convert the following unit of measure: 800 pounds = ____ tons.
    ::转换以下计量单位:800磅=____吨。

    Divide the number of pounds by the unit equivalence.
    ::将磅数除以单位等值。

    2,000 pounds = 1 ton
    ::2000 000磅=1吨

    800 ÷ 2,000 = 0.4 

    The answer is 800 pounds is equivalent to 0.4 tons.
    ::答案是800磅等于0.4吨

    Review
    ::回顾

    Convert the following units of measure.
    ::转换以下计量单位。

    1. 6 quarts = ____ gallons
      ::6 夸特=______加仑
    2. 24 inches = ____ feet
      ::24英寸=____英尺
    3. 18 inches = ____ feet
      ::18英寸 = ____英尺
    4. 4 quarts = ____ gallons
      ::4 夸尔特=______加仑
    5. 12 pints = ____ quarts
      ::12品脱=______夸脱
    6. 25 pints = ____ quarts
      ::25品脱= 夸特
    7. 1 quart = ____ gallons
      ::1 夸特=______加仑
    8. 9 quarts = ____ gallons
      ::9 夸特= 加仑
    9. 15 quarts = ____ gallons
      ::15 夸特=______加仑
    10. 99 inches = ____ feet
      ::99英寸=____英尺
    11. 98 pints = ____ gallons
      ::98品脱=______加仑
    12. 12,000 pounds = ____ tons
      ::12 000 000磅 = 吨
    13. 22,000 pounds = ____ tons
      ::22,000磅 = 吨
    14. 5,000 pounds = ____ tons
      ::5 000磅= 吨
    15. 20,000 pounds = ____ tons
      ::20,000磅= 吨

    Review (Answers) 
    ::回顾(答复)

    Click   to see the answer key or go to the Table of Contents and click on the Answer Key under the 'Other Versions' option.
    ::单击可查看答题键, 或转到目录中, 单击“ 其他版本” 选项下的答题键 。

    Resources
    ::资源