Maths Class 4th
21. Which of the following is one billion:
A) 1000000
B) 10000000
C) 100000000
D) 1000000000
22. How many zeros does two hundred million have:
A) 9
B) 8
C) 7
D) 6
23. Addition of smallest and greatest two digit number is:
A) 10
B) 20
C) 99
D) 109
24. We subtract the smallest two digit number from the largest two digit number we get:
A) 99
B) 89
C) 109
D) 110
25. 728 multiplied by 100 is:
A) 7280
B) 72800
C) 728000
D) 7280000
26. If we divide 480 by 10 we get :
A) 48
B) 4800
C) 480
D) 48000
27. The smallest six digit number is:
A) 666666
B) 100000
C) 999999
D) 900000
28. Which operation will be performed first:
A) +
B) –
C) x
D) /
29. The easiest method of finding HCF is the ______ method.
A) Division
B) Multiplication
C) Addition
D) Subtraction
30. What is the HCF of 12,16,20
A) 2
B) 4
C) 6
D) 8
31. Find the HCF of 11,77,88 by division method:
A) 1
B) 2
C) 11
D) 5
32. Find the LCM by common multiples method of 5,10,15
A) 10
B) 25
C) 30
D) 55
33. The Division method can be used to find which of the following:
A) HCF
B) LCM
C) Both A and B
D) None of the above
34. What is the LCM of 15,20,50 by Prime Factorization Method:
A) 900
B) 336
C) 300
D) 280
35. What is the LCM of 36,54 and 96 according to Division Method:
A) 240
B) 138
C) 864
D) 528
36. What is the least number which is exactly divisible by 9, 12 and 18.
A) 20
B)22
C) 32
D) 35
37. The HCF of two number is 1 then the number are:
A) Divisors
B) Primes
C) Co Primes
D) Factors
38. The HCF of 5, 10, 15 is:
A) 5
B) 10
C) 20
D) 30
39. The number which is divisible by he number other than itself and 1:
A) Prime
B) Composite
C) Even
D) Odd
40. 4 is divisible by:
A) 3
B) 4
C) 5
D) 7