Visualising Powers and Exponents

Q. The standard notation of 1650000 is given by .

1. $1.65\times {10}^{13}$
2. $16.5\times {10}^8$
3. $1650\times {10}^7$
4. $1.65\times {10}^6$

Q. Which of the four images represents $2^3$?

1. (A)
2. (B)
3. (C)
4. (D)

Q.

Scientific notation of 156, 600, 000, 000 m is given as:

1. 1.566 × ${10}^{11}$ m

2. 1.566 × ${10}^8$ m

3. 15.66 × ${10}^8$ m

4. 15.66 × ${10}^{11}$ m

Q.

How do you simplify square root of $128$ $+$ the square root of $32$?

Q. There are three people in a room. If they cut an apple into $3$ equal pieces and take $1$ piece each, each has eaten what part of the apple ?

1. one
2. one-third
3. one-fourth
4. half

Q. Expanded form of $243.7=(2\times {10}^2)+(4\times {10}^1)+$ + $(7\times {10}^{-1}$)

1. $(3\times {10}^0)$
2. $(3\times {10}^2)$
3. $(3\times {10}^1)$
4. $(4\times {10}^1)$