IEO Olympiad Preparation Class 1 to 5 – Singular and Plural

Singular-plural question paper:

Section A: Singular or Plural?

Instructions: For each sentence, choose the correct form of the noun (singular or plural) to complete the sentence.

  1. The __ of these rare birds is impressive.
  • a) flock
  • b) flocks
  1. His vast collection of antique cars includes several __.
  • a) Mercedes
  • b) Mercede
  1. The committee has two __ in its leadership.
  • a) chairpersons
  • b) chairmen
  1. Many __ of this ancient civilization still remain a mystery.
  • a) artifact
  • b) artifacts
  1. The __ between the two countries has been tense for years.
  • a) diplomacy
  • b) diplomacies
  1. These __ are known for their incredible speed.
  • a) cheetah
  • b) cheetahs
  1. The __ on the wall have been beautifully painted.
  • a) fresco
  • b) frescoes
  1. The __ of this species are found only in a few remote locations.
  • a) specimen
  • b) specimens
  1. Many __ in this forest have been discovered by scientists.
  • a) species
  • b) specie
  1. She bought three __ and planted them in her garden.
    • a) hyacinth
    • b) hyacinths

Section B: Noun Transformation

Instructions: Rewrite each sentence, changing the nouns to their plural form where necessary.

  1. The old book is on the shelf.
  2. My mother-in-law is coming for dinner.
  3. The child loves to play in the sandbox.
  4. The volcano erupted last year.
  5. She wore a beautiful dress to the party.

Section C: Sentence Completion

Instructions: Complete each sentence with the correct form (singular or plural) of the noun in brackets.

  1. The __ (deer) grazed peacefully in the meadow.
  2. The __ (child) in the class received a gold star.
  3. He owns a fleet of __ (ship) that sail around the world.
  4. The __ (mouse) ran across the kitchen floor.
  5. These __ (tooth) need to be examined by a dentist.

Section D: Fill in the Blanks

Instructions: Fill in the blanks with the correct singular or plural form of the noun in parentheses.

  1. The __ (leaf) fell gently from the tree.
  2. The __ (goose) honked loudly as it flew overhead.
  3. There are many __ (child) at the playground.
  4. She collected several __ (seashell) on the beach.
  5. The __ (wolf) howled at the moon.

Section E: Identify the Error

Instructions: In each sentence, identify the noun that is in the incorrect form (singular or plural) and provide the correct form.

  1. The dogs barks loudly in the yard. (Incorrect: _____ / Correct: ________ )
  2. These information is valuable. (Incorrect: _______ / Correct: _______ )
  3. The company needs to hire new staffs. (Incorrect: _____________ / Correct: __________ )
  4. Her hairs are naturally curly. (Incorrect: _________ / Correct: _________ )
  5. Three fishes are swimming in the pond. (Incorrect: _______ / Correct: ________ )

IGKP Preparation Class 1 to Class 5 – Statue & Location Quiz

  1. Standing tall in Rio de Janeiro, this iconic statue of Jesus Christ overlooks the city from the Corcovado Mountain. What is the name of this famous statue?
  2. This colossal statue of a mythical creature guards the entrance to the ancient city of Leshan in China. What is the name of this statue?
  3. In Brussels, Belgium, you can find a statue of a young boy urinating into a fountain. What is the name of this mischievous statue?
  4. The Little Mermaid statue sits on a rock in the harbor of which European capital city?
  5. In Memphis, Tennessee, there’s a statue of a famous rock ‘n’ roll legend known as the “King of Rock and Roll.” Who is this statue dedicated to?
  6. This bronze statue of a charging bull is located in the Financial District of which U.S. city?
  7. In Moscow, a famous statue of a medieval prince and the city’s founder stands in front of the Kremlin. What is the name of this statue?
  8. The Angel of the North is a massive sculpture in England that spreads its wings over a highway. In which English city can you find this artwork?
  9. A famous statue of a lion carved into a rock face can be seen in the Swiss Alps. What is the name of this sculpture?
  10. This statue of a mythical half-lion, half-bird creature guards the entrance to the ancient city of Babylon. What is the name of this statue?

Please leave your answers in comments. Thanks

IGKO Preparation Class 1 to 5 – Location

The Great Barrier Reef, the world’s largest coral reef system, is located in which country?

Machu Picchu, the ancient Incan citadel, is situated in which South American country?

The Taj Mahal, a renowned symbol of love and architecture, can be found in which country?

What country is home to the Sahara Desert, the largest hot desert in the world?

Where is the Amazon Rainforest, the world’s largest tropical rainforest, primarily located?

The Colosseum, a famous ancient amphitheater, is situated in which European city?

The Pyramids of Giza, one of the Seven Wonders of the Ancient World, are located in which country?

Ayers Rock (Uluru), a large sandstone rock formation, is found in which country?

The city of Kyoto, known for its rich history and traditional culture, is in which Asian country?

The Serengeti National Park, famous for its wildlife and annual migration, is located in which African country?

Number Divisibility Rules

Divisibility Rules of whether a number is divisible by 2, 3, 4, 5, 6, 8, 9 and 10

2Last digit in the number is even.14, 102, 118, 560
all end in even numbers, so all are divisible by 2.
3Sum of the digits of the number is divisible by 3.
The sum of the digits of 396 is 3+9+6 = 18 which is
divisible by 3, so 396 is divisible by 3.
4Number formed by the last 2 digits is divisible by 4.Last 2 digits of 1424 is 24, which is divisible by
4, so 1424 is divisible by 4.
5Last digit is 0 or 535, 90, 475
6Number is even and divisible by 3.144 is even and is divisible by 3 (sum of digits 1+4+4 = 9, divisible by 3), so 144 is divisible by 6.
8Last 3 digits divisible by 8 or Last 3 digit is 000Last 3 digits of 83400 is 400 which is divisible by 8. Last 3 digits of 1000 is 000 hence it is divisible by 8
9Sum of the digits of the number is divisible by 9.Sum of the digits of 1485 is 1+4+8+5 = 18
which is divisible by 9, so 1485 is divisible by 9
10Last digit is 090, 120, 680
Number Divisibility Rules

Problems on Divisibility

1. Determine the following numbers which are divisible by 2, using the test of divisibility by 2:

(i) 176, (ii) 221, (iii) 327, (iv) 90, (v) 192

2. Let us consider the following numbers to find whether the numbers are divisible or not divisible by 3:

(i) 176, (ii) 221, (iii) 327, (iv) 90, (v) 192

 3. Is 7248 is divisible (i) by 4, (ii) by 2 and (iii) by 8?

4. Without actual division, find if 235932 is divisible (i) by 4 and (ii) 8.

5. Determine which of the following numbers which are divisible by 6, using the test of divisibility by 6: 42, 144, 180, 258, 156

6. Determine which of the following numbers which are divisible by 9, using the test of divisibility by 9: 

99, 198, 171, 9990, 3411.

Weekly Current Affairs Quiz: 31 May to 1 June May 2021 for Competitive Exams

Weekly Current Affairs Quiz: 31 May to 1 June 2021 for Competitive Exams

Current Affairs

1. New CBI Director

Senior IPS officer Subodh Kumar Jaiswal was on May 25, 2021 appointed as the new CBI director for two years, as per the personnel ministry order. A three-member selection committee led by PM Narendra Modi on May 24, 2021, had shortlisted Jaiswal’s name for the position of director, Central Bureau of Investigation.


Current Affairs Quiz

1. “Action and Investment in Menstrual Hygiene and Health” is the theme of which special day celebrated on May 28?

[A] World Menstrual Hygiene Day
[B] World Women Health Day
[C] World Personal Health Day
[D] World Hygiene Day

Place Value – Greatest & Smallest Numbers – Grade/Class 4

  1. The greatest 4 digit number without repeating the digits is __________________________________
  2. The greatest 4 digit number with repeating the digits is ___________________________
  3. The smallest 4 digit number without repeating the digits is _____________________________
  4. The smallest 4 digit number with repeating the digits is ________________________
  5. The smallest 6 digit number made from digits 7,1,9,0 is ______________________________
  6. The greatest 6 digit number made by 7,1,9,0 is ______________________________
  7. 1 less than the smallest 5 digit number is ____________________________
  8. 1 more than the greatest 5 digit number is ____________________________
  9. 1 less than greatest 6 digit number without repeating the digits is __________________________________
  10. 1 more than smallest 6 digit number without repeating the digits is __________________________________
  11. Write the greatest and the smallest numbers using the digits 1, 0, 3, 5, 9
5 digit number________________________________________________
6 digit number________________________________________________
7 digit number________________________________________________

Please provide your answers in comment box. For any queries on the questions or right answers, reach out to us on contact us over email –

Olympiad Preparation – Class 3 – Weekly Questions – 3 Oct Week

Addition , Subtraction and Expanded Form Questions for Class 3 Olympiad Aspirants

Parents/Kids, We plan to publish 9 Olympiad Questions each week to prepare your lids for Olympiad.

Please ask your kids to attempt and answer below questions. Kids can add their answer and queries in comments section of this page

Happy Olympiad Preparation to all kids and parents

  1. Solve: 845 + 75 + 70 – 55 – 35.
  2. 7 thousands + 8 tens – 4 ones is equal to _____________
  3. 800000 + 40000 + 8000 + 300 + 60 + 5 is _____________
  4. What is the difference between the face and place value of 5 in the number, 85631?
  5. Solve : 2735 + 5237 – 3756
  6. Replace the question mark with a number given in the options below. ​66 + 37 – 23 = 89 + 5 – ?
  7. The sum of place value and face value of digit 6 in the number 4796232 is
  8. Which one of the following is the short form for. ​50000 + 4000 + 300 + 20 + 1
  9. What number replaces question mark to make the number sentence true ? 4567 – ? = 3451

Punctuation and Capital Letters


There are 14 punctuation marks that are commonly used in English grammar. They are the period, question mark, exclamation point, comma, semicolon, colon, dash, hyphen, parentheses, brackets, braces, apostrophe, quotation marks, and ellipsis.

We will today learn about commonly used punctuations :  period, question mark, exclamation point, comma, semicolon, colon, apostrophe and quotation marks

Sentence Endings

Three of the fourteen punctuation marks are appropriate for use as sentence endings. They are the period, question mark, and exclamation point.

  1. Period or full stop (.) is placed at the end of declarative sentences, statements thought to be complete and after many abbreviations.
  • As a sentence ender: Naman and Vihan went to the market.
  • After an abbreviation: Her son, Chauhan Jr., was born on Jun. 8, 2008.

2. Question mark (?) is used to indicate a direct question when placed at the end of a sentence.

  • When did Naman go to school?

3. Exclamation point (!) is used when a person wants to express a sudden outcry or add emphasis.

  • Within dialogue: “Holy cow!” screamed Jane.
  • To emphasize a point: My mother-in-law’s rants make me furious!

Comma, Semicolon, and Colon

The comma, semicolon, and colon are often misused because they all can indicate a pause in a series.

4.  Comma is used to show a separation of ideas or elements within the structure of a sentence. Additionally, it is used in numbers, dates, and letter writing after the salutation and closing.

  • Direct address: Thanks for all your help, Siri.
  • Separation of two complete sentences: We went to the movies, and then we went out to lunch.
  • Separating lists or elements within sentences: Naman wanted the black, green, and blue pants.

5.  Semicolon (;) is used to connect independent clauses. It shows a closer relationship between the clauses than a period would show.

  • John was hurt; he knew she only said it to upset him.

6. Colon (:) has three main uses. The first is after a word introducing a quotation, an explanation, an example, or a series.

  • He was planning to study four subjects: politics, philosophy, sociology, and economics.

Apostrophe and Quotation Marks

7.  Apostrophe (‘) is used to indicate the omission of a letter or letters from a word, the possessive case, or the plurals of lowercase letters. Examples of the apostrophe in use include:

  • Omission of letters from a word: I’ve seen that movie several times. She wasn’t the only one who knew the answer.
  • Possessive case: Sara’s dog bit the neighbor.
  • Plural for lowercase letters: Six people were told to mind their p’s and q’s.

8. Quotations marks (” “) are a pair of punctuation marks used primarily to mark the beginning and end of a passage attributed to another and repeated word for word. They are also used to indicate meanings and to indicate the unusual or dubious status of a word.

  • “Don’t go outside,” she said.

Single quotation marks (‘ ‘) are used most frequently for quotes within quotes.

  • Marie told the teacher, “I saw Marc at the playground, and he said to me ‘Bill started the fight,’ and I believed him.”page26image3539257184page26image3539392208page26image3539257952page26image3539258288page26image3539402432

Capital Letters:

A capital letters is used:

  • To begin a sentence.
  • To begin a proper noun

We always begin a sentence with a capital letter.

̄All proper nouns begin with capital letters too.
̄The letter ‘I’ when written by itself is always a capital letter.

You and are very good friends.