Periodic Assessment Test
Std – 6
Mathematics
October 2020
Time : 1 Hour
Marks : 25
(LO=Learning Outcome)
LO Identifies and classifies different numbers such as odd, even, co-prime, prime and
composite numbers.
Q.1 Do as directed.
1) Write Prime numbers between 20 to 30.
1
2) Determine if 263921 is divisible by 3.
1
3) State whether 15 and 37 are Co- prime numbers.
1
4) If a number is divisible by 5 and 12 then by which other number will it be
divisible.
2
LO Uses HCF and LCM at appropriate condition.
Q.2 Do as directed.
1) Find the HCF of 18, 54, 81
2
2) The traffic lights at three different road crossing change after every 48 seconds, 72
seconds and 108 seconds respectively. If they change simultaneously at 7 am, at
what time will they change simultaneously again?
3
LO. Classifies geometric shapes such as lines, line segments, open and closed figures, angles,
triangles, quadrilaterals, circles etc. from the surrounding example.
Q.3 Do as directed.
1) State whether the statements are true or false in context of the given figure.
3
a)
Q, M, O, N, P are points on the line MN.
b)
O and N are end points of line segment OP.
c)
N is the initial point of
⃗ and
⃗.
2) Answer the questions by considering the following figure. 2
(i)
Write the names of any two line segments in the figure.
(ii)
Vertex C is common to which two triangles
Answers
Answer:
23 and 29 are the prime numbers between 20 and 30. No even number is a prime number (except 2). Hence, 20, 22, 24, 26, 28 and 30 are not prime...
ANSWER
Rules of Divisibility:
Divisibility by 2: A number is divisible by 2 if the digit at the unit place is either 0 or multiple of 2
Divisibility by 3: Numbers are divisible by 3 if the sum of all the individual digits is evenly divisible by 3
Divisibility by 4: If the number formed by the last two individual digits is evenly divisible by 4
Divisibility by 5: A number is divisible by 5 if the number's last digit is either 0 or 5.
Divisibility by 6: Numbers are evenly divisible by 6 if they are evenly divisible by both 2 and 3.
Divisibility by 8: Numbers are divisible by 8 if the number formed by the last three individual digits is evenly divisible by 8.
Divisibility by 9: A number is divisible by 9, if the sum is a multiple of 9 or if the sum of its digits is divisible by 9.
Divisibility by 10: A number to be divisible by 10, the last digit must be a 0
Divisibility by 11: We must subtract and then add the digits in an alternating pattern from left to right. If the answer is 0 or 11, then the result is divisible by 11.
Numbers 2 3 4 5 6 8 9 10 11
990 Yes Yes No Yes Yes No Yes Yes Yes
1586 Yes No No No No No No No No
275 No No No Yes No No No No Yes
6686 Yes No No No No No No No No
639210 Yes Yes No Yes Yes No No Yes Yes
429714 Yes Yes No No Yes No Yes No No
2856 Yes Yes Yes No Yes Yes No No No
3060 Yes Yes Yes Yes Yes No Yes Yes No
406839 No Yes No No No No No No No
Answered By