Question 1
What is the predecessor of 3452?
a. 3455
b. 3451
c. 3453
d. 3452
Question 2
What is the successor of 978?
a. 977
b. 979
c. 980
d. 981
Question 3
What is the correct sign for this?
430 ___ 403
a. >
b. <
c. =
d. none of these
Question 4
What is the correct sign for this?
12345 _____ 45678
a. >
b. <
c. =
d. none of these
Question 5
What is the correct sign for this?
460 ___ 406
a. >
b. <
c. =
d. none of these
Question 6
What is value of 7 – 5?
a. 1
b. 2
c. 3
d. 4
Question 7
Which whole number has no predecessor?
a. 0
b. 1
c. 2
d. none of these
Question 8
Which of the following will not represent zero?
a. 1 + 0
b. 0 × 0
c. 0/11
d. (110-110)/2
Question 9
Fill in the blanks:
a) If the product of two whole numbers is zero, then ______ of them will be zero.
b) Every natural number except _____ has a predecessor.
c) If we add the number _____ to the collection of natural numbers, we get the collection
of whole numbers.
d) All natural numbers are __________ numbers.
e) 900 is the successor of _____.
f) . A number remains unchanged when multiplied to ______.
Long type Question
Question 10
Every classroom in a Dehradun school contains 32 students. How many students would 5 classrooms hold?
Question 11.
Find the sum by suitable rearrangement: 237 + 108 + 163.
Question 12
Find the product by suitable rearrangement: 4 × 4768 × 50.
Question 13
Find the product using suitable properties: 854 × 103.
Question 14
Fill in the blanks
(a) ____ × 13 = 13 × 24
(b) Whole numbers are closed under_______ and ________ operation.
(c) Division by ______ is not defined.
(d) _______ is the identity for multiplication.
(e) If ______ is added to a number, the sum will remain the same. Hence ______is called the __________ in the whole numbers.
Question 15
Match the following:
125 × 126 = 125 × (6 + 20 + 100)
|
Commutativity under multiplication
|
60 + 2105 + 20 = 60 + 20 + 2105
|
Commutativity under addition
|
2 × 19 × 50 = 2 × 50 × 19
|
Distributivity of multiplication over addition
|
