Understanding Whole Numbers

1. True / False (1 pts)

Whole numbers include zero.

✓ Answer

True

2. True / False (1 pts)

The difference between two whole numbers is always a whole number.

✓ Answer

False

3. True / False (1 pts)

The additive identity for whole numbers is 1.

✓ Answer

False

4. True / False (1 pts)

Whole numbers are commutative under multiplication.

✓ Answer

True

5. True / False (1 pts)

Zero is not considered a natural number.

✓ Answer

True

6. True / False (1 pts)

Multiplying a whole number by 0 gives the number itself.

✓ Answer

False

7. True / False (1 pts)

The number 1 is both a whole number and a natural number.

✓ Answer

True

8. True / False (1 pts)

Whole numbers are closed under division.

✓ Answer

False

9. True / False (1 pts)

The predecessor of a whole number is always a whole number.

✓ Answer

False

10. True / False (1 pts)

0 is the only whole number that is not a natural number.

✓ Answer

True

11. Multiple Choice (2 pts)

Which property is shown by the equation 291 x (125 x 8) = (291 x 125) x 8?

✓ Answer

A. Associative property

12. Multiple Choice (2 pts)

How many whole numbers are smaller than 8?

✓ Answer

A. 7

13. Multiple Choice (2 pts)

The successor of the smallest whole number is:

✓ Answer

A. 1

14. Multiple Choice (2 pts)

Which of the following is not a natural number?

✓ Answer

A. 0

15. Multiple Choice (2 pts)

Find the successor of 8,06,998.

✓ Answer

A. 8,06,999

16. Multiple Choice (2 pts)

What is the sum of the predecessors of 84,636 and 90,025?

✓ Answer

D. 1,74,659

17. Multiple Choice (2 pts)

Which of the following depicts the distributive property?

✓ Answer

B. 64 x 12 + 64 x 14

18. Multiple Choice (2 pts)

What is the additive identity for whole numbers?

✓ Answer

B. 0

19. Multiple Choice (2 pts)

Find the product of 2 × 2 that is shown as square numbers.

✓ Answer

A. 4

20. Multiple Choice (2 pts)

Take any two whole numbers and prove that whole numbers are not commutative under which operation?

✓ Answer

D. Division

21. Fill in the Blank (2 pts)

The _____ property is used when we say 2+4=4+2.

✓ Answer

commutative

22. Fill in the Blank (2 pts)

The _____ of a number is the number that comes after it.

✓ Answer

successor

23. Fill in the Blank (2 pts)

The _____ process includes numbers like 0, 1, 2, 3...

✓ Answer

counting

24. Fill in the Blank (2 pts)

The identity element for multiplication of whole numbers is _____ .

✓ Answer

1

25. Fill in the Blank (2 pts)

Distributive property of multiplication over addition is expressed as a(b _____ c) = ab + ac.

✓ Answer

+

26. Fill in the Blank (2 pts)

Zero is considered a _____ number but not a natural number.

✓ Answer

whole

27. Fill in the Blank (2 pts)

The predecessor of a whole number n is _____ .

✓ Answer

n-1

28. Fill in the Blank (2 pts)

Whole numbers are a set of numbers which start from _____ .

✓ Answer

zero

29. Fill in the Blank (2 pts)

Multiplication of a whole number by 1 leaves it _____ .

✓ Answer

unchanged

30. Fill in the Blank (2 pts)

The number zero has no _____ value.

✓ Answer

additive

31. Word Problem (5 pts)

A class has 24 students each needing 3 pencils. How many pencils are required?

✎ Worked Solution

Step 1: Pencils per student = 3

Step 2: Total students = 24

Step 3: Total pencils = 3 × 24

Answer: 72 pencils

32. Word Problem (5 pts)

You have 5 apples and give away 2. How many apples are left?

✎ Worked Solution

Step 1: Initial apples = 5

Step 2: Apples given away = 2

Step 3: Apples left = 5 - 2

Answer: 3 apples

33. Word Problem (5 pts)

If Amit earns $30 a day, find how much he earns in a week.

✎ Worked Solution

Step 1: Earnings per day = $30

Step 2: Days per week = 7

Step 3: Total earnings = 30 × 7

Answer: $210

34. Word Problem (5 pts)

Sold 45 bananas at $1 each. How much money was made?

✎ Worked Solution

Step 1: Bananas sold = 45

Step 2: Price per banana = $1

Step 3: Total earnings = 45 × 1

Answer: $45

35. Word Problem (5 pts)

Find the total cost if 8 notebooks are purchased for $2 each.

✎ Worked Solution

Step 1: Cost per notebook = $2

Step 2: Total notebooks = 8

Step 3: Total cost = 8 × 2

Answer: $16

36. Word Problem (5 pts)

Rohit travels 15 km to his office and back. What is the total distance covered in 5 days?

✎ Worked Solution

Step 1: Distance per day = 15 km x 2

Step 2: Total days = 5

Step 3: Total distance = 30 km × 5

Answer: 150 km

37. Word Problem (5 pts)

If a book costs $3, how much will 7 books cost?

✎ Worked Solution

Step 1: Cost per book = $3

Step 2: Total books = 7

Step 3: Total cost = 3 × 7

Answer: $21

38. Word Problem (5 pts)

A bus travels 60 km to a city. How far does it travel in 3 trips?

✎ Worked Solution

Step 1: Distance per trip = 60 km

Step 2: Total trips = 3

Step 3: Total distance = 60 × 3

Answer: 180 km

39. Word Problem (5 pts)

If one pencil costs $0.50, what is the cost of 20 pencils?

✎ Worked Solution

Step 1: Cost per pencil = $0.50

Step 2: Total pencils = 20

Step 3: Total cost = 0.50 × 20

Answer: $10

40. Word Problem (5 pts)

A rectangle has length 10 cm and width 5 cm. Find its area.

✎ Worked Solution

Step 1: Length = 10 cm

Step 2: Width = 5 cm

Step 3: Area = 10 × 5

Answer: 50 cm²