Whole Numbers Test

Result

Whole Numbers Test - 3

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Weekly Quiz Competition

Question 1
1 / -0

The predecessor of 1644320 is

A
1644322

B
1644319

C
1644323

D
1644321

Solution

Predecessor is obtained by subtracting 1 from the number. so 1644320 - 1 = 1644319
Question 2
1 / -0

Which of the following represents associative law of addition?

A
a + b = a + b

B
a + (b + c) = (a + b) + c

C
a × (b - c) = a × b - a × c

D
a × (b + c) = a × b + a × c

Solution

a + (b + c) = (a + b) + c
Question 3
1 / -0

The predecessor of 20000 exceeds largest 4 digit number by

A
19999

B
1000

C
1

D
10000

Solution

Predecessor is obtained by subtracting 1 from the number.

So 20000 - 1 = 19999

Largest 4 digit number is 9999

Required difference is 19999 - 9999 = 10000
Question 4
1 / -0

30 can be arranged as _____

A
Line and rectangle

B
Square

C
Line and triangle

D
Rectangle

Solution

Since 30 can be expressed in three ways, 5 6, 3 10 and 2 15, all will form a rectangle. Moreover all the numbers can also be represented through a line. So 30 can be represented as a line and rectangle.
Question 5
1 / -0

How many natural numbers lie between 9 and 15?

A
4

B
6

C
5

D
7

Solution

Natural numbers between 9 and 15 are: 10, 11, 12, 13, 14; which are 5 in number.
Question 6
1 / -0

65 × 95 = 65 × (______ + 5)

A
80

B
90

C
95

D
100

Solution

95 = 90 + 5 Therefore, 65 × 95 = 65 × (90 + 5) using the distributive property.
Question 7
1 / -0

How many whole numbers are there up to 1000?

A
1001

B
100

C
999

D
1000

Solution

There are 1000 + 1 = 1001 whole numbers upto 1000.

i.e. 0,1,2,3,4,5,6,7,8,9,.........,1000.
Question 8
1 / -0

The successor of largest four digit number using each of the digits 7, 1, 0, 5 only once is

A
7511

B
5017

C
1057

D
7501

Solution

The largest four digit number using each of the digits 7, 1, 0, 5 only once is 7510.

Its successor is 7510 + 1 = 7511
Question 9
1 / -0

Distributive law of multiplication over subtraction states that:

A
p x (q – r) = (p x q) – (p x r)

B
p – (q x r) = p – q x r

C
p – ( q x r) = (p – q) x (p – r)

D
p x (q – r) = p x q – r

Solution

Let p=2, q=5 and r=3

2 x ( 5 - 3) = 2 x 2 = 4 .....(i)

(2 x 5) - (2 x 3) = 10 - 6 = 4 ..........(ii)

Solutions of (i) and (ii) equal to 4.

Hence, p x (q - r) = (p x q) - (p x r)
Question 10
1 / -0

How many natural numbers are there up to 60?

A
62

B
59

C
60

D
61

Solution

There are 60 natural numbers counting upto 60. i.e. 1,2,3,4,...............,60.

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Re-Attempt Weekly Quiz Competition

Whole Numbers Test - 3

Result

Whole Numbers Test - 3

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SHARING IS CARING

Question 1

1644322

1644319

1644323

1644321

Solution

Question 2

a + b = a + b

a + (b + c) = (a + b) + c

a × (b - c) = a × b - a × c

a × (b + c) = a × b + a × c

Solution

Question 3

19999

1000

1

10000

Solution

Question 4

Line and rectangle

Square

Line and triangle

Rectangle

Solution

Question 5

4

6

5

7

Solution

Question 6

80

90

95

100

Solution

Question 7

1001

100

999

1000

Solution

Question 8

7511

5017

1057

7501

Solution

Question 9

p x (q – r) = (p x q) – (p x r)

p – (q x r) = p – q x r

p – ( q x r) = (p – q) x (p – r)

p x (q – r) = p x q – r

Solution

Question 10

62

59

60

61

Solution

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