# Free Whole Numbers 03 Practice Test - 6th grade

Six friends went to PVR and the seats were numbered from 1 to 16. If the first person sat on the chair numbered 3 then the sixth person will be sitting on chair numbered _____. Assuming they all sit together.

A.

9

B.

8

C.

7

D.

6

#### SOLUTION

Solution : B

As the first person is sitting on the chair numbered 3, the sixth person is five places away from the first person.
So, we need to add five places to the chair numbered 3.
Sixth person will sit on the chair numbered 8. Which of the following statements are correct?

i) 0 + 2 is a whole number.

ii) 0 ÷ 49843 is a not a whole number.

iii)  98645 × 5678 = 5678 × 98645

A. i, ii and iii
B. i only
C. i and iii only
D. ii only

#### SOLUTION

Solution : C

i) 0 + 2 = 2 which is a whole number. Also, whole numbers are closed under addition.

ii) 0 ÷ 49843 = 0 which is a whole number.

iii) 98645 × 5678 = 5678 × 98645
This represents commutative property of multiplication.

Ramya wanted to arrange 90 sweets (of dimensions 1×1) in a box. She has 5 boxes of dimensions 10×9, 9×10, 5×18, 16×5 and 18×5. Among these boxes, in which box can she NOT arrange all the  sweets?

A.

10×9

B.

16×5

C.

18×5

D.

5×18

#### SOLUTION

Solution : B

The area occupied by one sweet will be 1×1=1 sq units and she has to arrange 90 sweets in the box.

Minimum space needed by Ramya to arrange all the sweets is 90 sq units.

Except for 16×5 the size of all the boxes is 90 sq units.

16×5=80 sq units so she cannot arrange all the sweets in this box.

___ is the successor of 1289734.

#### SOLUTION

Solution :

The nearest greatest number is the successor of any number. So successor of 1289734 is 1289735.

The smallest whole number in the number system is (write your answer in numerals) ___.

#### SOLUTION

Solution :

Whole numbers start with 0, therefore, 0 is the least whole number in the number system.

The value of 64×50 is ___.

#### SOLUTION

Solution :

The value of 64×50 is

64×50=(64×100)2=3200

The predecessor of any number can be obtained by __ one from it.

A.

subtracting

C. multiplying
D. dividing

#### SOLUTION

Solution : A

The predecessor of any number is the number that comes immediately before that number. The predecessor of any number can be obtained by subtracting one from it.

If you have to add 6 and 5 on the number line, you can start from the number ___ and take 6 jumps towards the ___ (right/left).

#### SOLUTION

Solution :

To add 6 and 5 on the number line, we could do it in two ways:

1. Start at the number 5 and make 6 jumps to the right, we land at 11. Hence, 5 + 6 = 11.
2. Start at the number 6 and make 5 jumps to the right, we land at 11. Hence, 6 + 5 = 11.

Because we are adding numbers, we move towards the right on the number line.

All natural numbers are whole numbers.

A.

True

B.

False

#### SOLUTION

Solution : A

All natural numbers are whole numbers. When zero is included in the list of natural numbers it becomes a set of whole numbers.

49 dots can be arranged to form a square. Is it true or false?

A.

True

B.

False

#### SOLUTION

Solution : A

If 7 dots are arranged horizontally and vertically, we will get square. If any number is a perfect square then we can form a square with that number.