Westonci.ca is your trusted source for finding answers to all your questions. Ask, explore, and learn with our expert community. Join our platform to connect with experts ready to provide accurate answers to your questions in various fields. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

Alex wrote 103.903 in expanded form as 100+3 x 1+9 x 1/100 +3 x 1/1000. Explain his mistake then tell how to correct it.

Sagot :

Your mistake was in this part  9 x 1/100 . After the decimal point the place value starts with tenths so you should write 9 x 1/10 .

Place values

Before the decimal point

3 ones = 3 x 1

0 tens = 0 x 10

1 hundreds = 1 x 100

After the decimal point

9 tenths = 9 x 1/10

0 hundredths = 0 x 1/100

3 thousandths= 3 x 1/1000

1 x 100 + 0 x 10 + 3 x 1 + 9 x 1/10 + 0 x 1/100 + 3 x 1/1000

  100     +    0     +   3    +    0.9      +     0        +    0.003

           100         + 3      +          0.9                +     0.003 =  103.903

 

Answer:

[tex]103.903=100+3\times1+9\times \frac{1}{10}+3\times \frac{1}{1000}[/tex]    

Step-by-step explanation:

Given : Alex wrote 103.903 in expanded form as

[tex]100+3\times1+9\times \frac{1}{100}+3\times \frac{1}{1000}[/tex]

To find : Explain his mistake then tell how to correct it ?

Solution :

The Alex expansion of the number is not correct as 9 is at tenths place so 9 is multiply by 1 by 10 not 1 by 100.

The correct expanded form of the number 103.903 is

[tex]103.903=1\times 100+0\times 10+3\times1+9\times \frac{1}{10}+0\times \frac{1}{100}+3\times \frac{1}{1000}[/tex]

or [tex]103.903=100+3\times1+9\times \frac{1}{10}+3\times \frac{1}{1000}[/tex]