WORD PROBLEMS ON STANDARD FORM AND EXPANDED FORM

Brazil is the largest country in South America.

Problem 1 :

The land area of Brazil is

Three million, two hundred eighty six thousand, four hundred seventy square miles.

How would you write this number in standard form ?

Solution :

The land area of Brazil is

Three million, two hundred eighty – six thousand, four hundred seventy square miles.

Standard form is 3,286,470.

Problem 2 :

In Brazil there are

Two million, one hundred thirty five thousand, six hundred thirty seven square miles of forest.

Write this number in standard form ?

Solution :

Two million, one hundred thirty – five thousand, six hundred thirty - seven

Standard form is 2,135,637.

Problem 3 :

The Brazilian city of Rio de Janeiro has an estimated population of 5, 974, 100. Write this number in words.

Solution :

Estimated population is 5, 974,100

Number in words : Five million, nine hundred seventy four thousand, one hundred.

Problem 4 :

Which of these is the number 6, 090, 200 ?

A) six million, nine thousand, two hundred

B) six million, ninety thousand, two hundred

C) six hundred – ninety thousand, two hundred

D) six million, ninety – two thousand 

Solution :

Given, 6, 090, 200

six million, ninety thousand, two hundred

Correct option is B.

Problem 5 :

Which of these is four million, fifty – eight thousand, twenty – one ?

F)   4,580,021       G)  4,005,821

H)   4,058,021        J)   458,021

Solution :

four million, fifty – eight thousand, twenty – one

4,580,021

Correct option is F.

Problem 6 :

Which shows the expanded form of 805,034 ?

A 800,000 + 5000 + 30 + 4

B 800,000 + 50,000 + 30 + 4

C 8,000,000 + 5000 + 30 + 4

D 800,000 + 5000 + 300 + 4

Solution :

Given, 805,034

800,000 + 5000 + 30 + 4

Correct option is A.