Wednesday, May 29, 2013

REAL NUMBERS


Thursday, May 16, 2013

CLASS VI ORAL QUESTIONS


ORAL QUESTIONS
CLASS VI 
TOPIC: 1.)KNOWING OUR NUMBERS,
2.) WHOLE NUMBERS ,
3.)PLAYING WITH NUMBERS
Q1-      Which is the greatest 2-digit number ?
Q2-      Which is the greatest 3-digit number?
Q3-      Which is  the greatest 4-digit number?
Q4-      Which is   the smallest 2-digit number?
Q5-      Which is the smallest 3-digit number?
Q6-      Which is  the smallest 4-digit number?
Q7-      What is ascending order?
Q8-      What is descending order?
Q9-      How many lakhs  are in one crore?
Q10-    How many thousands are in one crore?
Q11-    How many thousands  are in one lakh?
Q12-    How many hundreds   are in one lakh?
Q13-    How many cm.  are in km.?
Q14-    1m= _____cm
Q15-    1m= ______millimeters
Q16-    1cm= _____mm.
Q17-    1gm= _____mg
Q18-    1kg= ____ gm
Q19-    1 liter= ____ milliliters
Q20-    The nearest tens of 17= ______ .
Q21-    The nearest hundreds  of 889= ________ .
Q22-    The nearest thousands  of 999= _____ .
Q23-    Roman symbol of 10 is ______ .
Q24-    Roman symbol of 50 is _____ .
Q25-    Roman symbol of 100 is ______ .
Q26-    Which system is used for writing numerals?
Q27-    Which is smallest whole number?
Q28-    Which is greatest whole number?
Q29-    Are all whole numbers also  natural numbers?
Q30-    Are all natural  numbers also  whole numbers?
Q31-    What is the predecessor of 19?
Q32-    What is the successor of 16?
Q33-    Is there  any natural number which has no successor?
Q34-    Is there a last natural number?
Q35-    What is closure property?
Q36-    Which numbers are not closed under subtraction?
Q37-    Division of whole number by 0 is _____ .                           
Q38-    Addition and Multiplication are commutative for _____ .
Q39-    Is zero has predecessor?
Q40-    Division by 0 is defined or not?
Q41-    The identity for addition of whole numbers is ________.
Q42-    The identity for Multiplication of whole numbers is ________.
Q43-    What is a factor of a number?
Q44-    Every number is a factor of itself. (True /False).
Q45-    Number of factors of a given number are finite. (True/ False).
Q46-    The number of multiples of a given number is infinite. (True/ False)
Q47-    What are prime numbers?
Q48-    What are composite numbers?
Q49-    Seven is prime or composite numbers?
Q50-    Which is the smallest even prime number?
Knowing our Numbers, Whole Numbers , Playing With Numbers
Answer  Key
Q. NO.
ANSWER
Q. NO.
ANSWER
1
99
26
Hindu-Arabic
2
999
27
0
3
9999
28
Impossible
4
10
29
Yes
5
100
30
No
6
1000
31
18
7
Arrangement from smallest to  greatest
32
17
8
Arrangement from greatest  to  smallest
33
No
9
100
34
No defined
10
10,000
35
Numbers which are closed under addition and multiplication
11
100
36
Whole numbers
12
1000
37
Not possible
13
100000
38
Whole number
14
100
39
Not
15
1000
40
Not
16
10
41
Zero
17
1000
42
1
18
1000
43
Exact divisor of that number
19
1000
44
True
20
20
45
True
21
900
46
True
22
1000
47
Which is divisible by 1 and itself
23
X
48
Which has more than two factors
24
L
49
Prime number
25
C
50
2