HCF AND LCM- MATH WORKSHEERTS GRADE 5
|
Ch 3 HCF and LCM Fill in the blaks: |
|
Pg 32 |
|
1.
Multiples of 2 are called
________ numbers. |
Even numbers |
Pg 32 |
|
2.
A number having only two
factors is called _____ number. |
Prime number |
Pg32 |
|
3.
_________ is the only even
prime number. |
2 |
Pg 32 |
|
4.
Two prime numbers which differ
by two are called _____ numbers. |
Co-prime |
Pg 32 |
|
5.
______ is a factor of every number. |
1 |
Pg 34 |
|
6.
The multiple of a number is
always _______ or _____ than the number. |
Equal or greater |
Pg 34 |
|
7.
The product of the HCF and LCM
of 7 and 11 is _______. |
77 |
Pg 40 |
|
8.
HCF * LCM = _________. |
Product of two numbers |
Pg 41 |
|
9.
The smallest composite number
is ________. |
2 |
Pg 43 |
|
10.
The least number divisible by
12,18, 30 is ________. |
120 |
Pg 43 |
|
|
Ch 3 Write true or false |
|
|
1. |
Every number is a multiple of 1. |
True |
|
2. |
Any number is
a multiple of itself. |
True |
|
3. |
All the
multiples are either equal to or greater than the given number. |
True |
|
4. |
The
largest multiple of a number is the number itself |
False |
|
5. |
The
multiples of an even number are always odd. |
False |
|
6. |
The
multiples of odd number are both Even and odd. |
True |
|
7. |
We
cannot find HCF using prime factorization. |
False |
|
8. |
LCM
of two or more given numbers is the smallest number which is a multiple of
each of the numbers. |
True |
|
9. |
The
product of two numbers is equal to the product of HCF and LCM |
True |
|
10. |
The
smallest composite number is 1. |
False |
|
|
Ch 3 hcf and lcm worksheet Match the column |
|
|
|
Column A |
Column B |
|
1. |
Every number |
Three as a factor |
|
2. |
21 |
Multiple of 1 |
|
3. |
HCF |
Least common multiple |
|
4. |
LCM |
Highest common factor |
|
5. |
Product |
6 |
|
6. |
HCF of 18 and 24 |
Multiply |
|
7. |
LCM of 20 and 30 |
Star dividing all the numbers by the smallest prime number |
|
8. |
Common divisor method |
60 |
|
9. |
The smallest composite number |
2, and 3 |
|
10. |
Prime factors of 6 |
2 |
|
Ch 3 HCF and LCM Choose the correct answer |
|
Pg 32 |
|
11.
Multiples of 2 are called
________ numbers. (a) Odd
numbers (b) even numbers (c) natural numbers (d) whole |
Even numbers |
Pg 32 |
|
12.
A number having only two
factors is called _____ number. (a) Composite
number (b) prime number (c) whole
number (d) natural number |
Prime number |
Pg32 |
|
13.
_________ is the only even
prime number. (a) 1 (b) 2
(c) 4 (10) |
2 |
Pg 32 |
|
14.
Two prime numbers which differ
by two are called _____ numbers. (a) Co-primes (b)
friends (factors (d)
composites |
Co-prime |
Pg 32 |
|
15.
______ is a factor of every
number. (a) 2 (b) 5
(c) 1 (d) 7 |
1 |
Pg 34 |
|
16.
The multiple of a number is
always _______ or _____ than the number. (a) Equal
or greater (b) equal and smaller (c)
greater (d) none |
Equal or greater |
Pg 34 |
|
17.
The product of the HCF and LCM
of 7 and 11 is _______. (a) 77 (b) 70
(c) product (d) none |
77 |
Pg 40 |
|
18.
HCF * LCM = _________. (a) Division
of two numbers (b) product of two
numbers (c) factors of numbers (d) multiples |
Product of two numbers |
Pg 41 |
|
19.
The smallest composite number
is ________. (a) 1 (b) 2
(c) 3 (d) 5 |
2 |
Pg 43 |
|
20.
The least number divisible by
12, 18, 30 is ________. (a) 120 (b) 6
(c) 18 (d) 150 |
120 |
Pg 43 |