4th Grade Mental Math on Factors and Multiples
In 4th grade mental math on factors and multiples students can practice different questions on prime numbers, properties of prime numbers, factors, properties of factors, even numbers, odd numbers, prime numbers, composite numbers, tests for divisibility, prime factorization, common factor, hcf by long division method, common multiples, lowest common multiple and lcm by long division method.
1. Fill in the blanks:
(i) The smallest multiple of a number is __________.
(ii) A prime number has exactly __________ factors.
(iii) Which even number is prime? __________
(iv) Which number has exactly 1 factor? __________
(v) The multiple of an even number is always __________.
(vi) The multiple of an __________ number may be odd or even.
(vii) The product of two numbers is also their __________.
(viii) All multiples of 10 end with __________.
(ix) A number is a multiple of 5 if it has either __________ in ones place.
(x) Every number is a multiple of __________.
(xi) __________ is a factor of every number.
(xii) The greatest factor of a number is the number __________.
Answer:
(i) 1
(ii) 2
(iii) 2
(iv) 1
(v) even
(vi) odd
(vii) LCM
(viii) 0
(ix) 0 or 5
(x) Itself
(xi) 1
(xii) Itself
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