Question

2. Write decimal for each of the following:
(i) 6 ones +6 tenths + 2 hundredths + 3 thousandths
(ii) 8 hundreds + 3 ones + 4 tenths + 2 thousandths
(iii) 8 hundreds + 2 tens + 4 ones + 8 thousandths
(iv) 2 hundreds +5 tens +9 hundredths + 5 thousandths
(v) 6 tens + 4 ones +5 tenths + 8 thousandths
(vi) 5 hundreds + 5 hundredths +5 thousandths


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Answer 1

Answer:

1. 6.623,  2. 803.402, 3. 824.008  4. 250.095  5. 64.508  6. 500.055.

Step-by-step explanation:

Given: addition of numbers using place values.

To find : the decimal value for each of the given questions.

Solution :We will write the numbers using place values. The decimal comes after the ones and before the tenths. After ones, the decimal point is followed by tenths, hundredths, thousandths. Tenths is written as 1/10 and its value in decimal is 0.6, for hundredths it is 1/100=0.00 and for

thousandths it is 1/1000 = 0.000 and so on.

1. 6 ones + 6 tenths + 2  hundredths + 3 thousandths

 = 6+ 6/10 +2/100 + 3/1000 = 6 + 0.6 + 0.02 + 0.003

 = 6.623

2. 8 hundreds + 3 ones + 4 tenths + 2 thousands

  = 800 + 0 + 3 + 4/10 + 0/100 + 2/1000 = 800 + 0 + 3 + 0.4 + 0.00 +0.002

  = 803.402

3. 8 hundreds + 2 tens + 4 ones + 8 thousandths

   = 800 + 20 + 4 + 0/10 + 0/100 + 8/1000=800 + 20 + 4+ 0.0+0.00+0.008

   = 824.008

4. 2 hundreds + 5 tens +9 hundredths + 5 thousandths

   = 200 + 50 + 0 + 0/10 + 9/100 + 5/1000=200 + 50 + 0+ 0.0+0.09+0.005

   = 250.095

5. 6 tens + 4 ones + 5 tenths + 8 thousands

   = 60 + 4 + 5/10 + 0/100 +8/1000 = 60 + 4 + 0.5 + 0.00 + 0.008

   = 64.508

6. 5 hundreds + 5 hundredths + 5 thousandths

   =500 + 0 + 0 + 0/10 + 5/100 + 5/1000 = 500 +0 + 0+0.0 + 0.05 +0.005

   = 500.055

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Answer 2

Answer:

(i) - 6.623

(ii) - 803.042

(iii) -  824.008

(iv) -250.095

(v) -64.508  and

(vi)- 500.055

Explanation:

• 6 ones + 6 tenths + 2 hundredths + 3 thousandths.

6 + 0.6 + 0.02 + 0.003

⇒6.623

• 8 hundreds + 3 ones + 4 tenths + 2 thousandths

800 + 3 + 0.4 + 0.002

⇒803.042

• 8 hundreds + 2 tens + 4 ones + 8 thousandths

800+ 20 + 4 + 0.008

⇒ 824.008

• 2 hundreds +5 tens +9 hundredths + 5 thousandths

200 + 50 + 0.09 + 0.005

⇒250.095

• 6 tens + 4 ones +5 tenths + 8 thousandths

60 + 4 + 0.5 + 0.008

⇒64.508

• 5 hundreds + 5 hundredths +5 thousandths

500 + 0.05 + 0.005

⇒500.055

Final answer:

Hence, (i) - 6.623 , (ii) - 803.042 , (iii) -  824.008 ,(iv) -250.095 ,(v) -64.508  and  (vi)- 500.055

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