Maths
Q1. Amit purchased 5 kg 400 g
rice, 3 kg 30 g sugar and
11 kg 750 g flour the total weight of his purchases.
Q2.
Subtract 238.53 m from 250 m.
Q3.
Find the sum of 280.68 + 28.5 + 38.
Q4.
Write
the place value of 5 of the following
12.5
7.45 0.657 215.5
Q5.
Write
the following numbers in decimal from:
a) Sixty two and
five-tenths b) Three
hundred four and two tenths
Q6.
Convert into
fractions.
a) 13.8
b) 13.08 c) 13.008
Q 7 Jaidev takes 25/3 minutes to walk across the
school ground. Rahul takes 33/8 minutes to do the same. Who
takes less time and by what fraction?
Q.8 The Highest Common Factor (H.C.F.) of:
10 and 16 is ____ 8 and 6 is ____ 30 and 45 is ____ 16
and 12 is ____ 27 and
12 is ____ 50 and 45 is ____ 10
and 25 is ____ 4 and 10 is ____
Q.9 The Lowest Common Multiple (L.C.M.) of:
4 and 6 is ____ 10 and
6 is ____ 10 and 6 is ____ 9 and 18 is ____ 10 and 15 is ____ 9 and 12 is ____ 10 and 24 is ____
Q.10 Which is an example of twin prime numbers? A. 11, 17B. 5, 11 C. 3, 7D. 3, 5
Q11. What do you call the number
that has exactly two factors, 1 and itself? A. Natural
numbersB. Perfect numbers
C. Composite
numbersD. Prime numbers
Q12. what are twin prime numbers
Q13.What are co-prime numbers.
Give example?
Q14. Smallest 3 digit prime number
a) 103 b) 107
c)109 d) none of these
Q15. Write down the first 3 multiples of 8.
Q16. Write down all multiples of 3
greater than 10 but smaller than 20.
Q17. The smallest number that is a common multiple of two or more
number is called _____________
Q18. Find all the factors of 240.
Q19. What are composite numbers. Write all the composite numbers less
than 20.
Q20. Convert 2.55 into fraction.
Q21. Write 0.999 as fraction. Reduce the fraction
to lowest term.
Q22. Write the
following as decimals.
a) Eighteen thousand
six and seven-thousandths
b) Sixty-five
hundred point three five two
Q23.
Convert into
fractions.
a) 13.8
b) 13.08 c) 13.008
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