Numbers in General Form

Q. Find the values of letters A and B.

1. A = 7; B = 6

2. A = 7; B = 4

3. A = 8; B = 6

4. A = 8; B = 4

Q.

(f × 100) + (d × 10) + e is written as

1. def

2. efd

3. edf

4. fde

Q.

$1000\times 2+100\times 3+10\times 2+1\times 4$ is expressed as:

1. 4232

2. 1111

3. 2024

4. 2324

Q.

The usual form of $100\times 7+10\times 5+6$ is

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Q.

Write 908 in expanded form.

1. $({10}^2\times 9)+({10}^1\times 0)+({10}^0\times 8)$

2. $({10}^3\times 9)+({10}^1\times 0)+({10}^0\times 8)$

3. $({10}^3\times 9)+({10}^2\times 0)+({10}^1\times 8)$

4. $({10}^2\times 9)+({10}^1\times 8)$

Q.

Find the value of a:
$786=a\times 7+10\times 8+1\times 6$

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Q.

Find the value of a:
$43=a\times 4+1\times 3$

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Q.

If a number 'x' is divisible by another number 'y', then 'x' is also divisible by all the prime factors of 'y'.

1. True

2. False

Q.

The standard notation of 1000a + 100b + c is

1. abc

2. abc0

3. a0bc

4. ab0c

Q.

123 can be expressed as:

1. $10\times 1+10\times 2+10\times 3$
   

2. $100\times 1+100\times 2+100\times 3$
   

3. $100\times 1+10\times 2+1\times 3$
   

4. $1\times 1+1\times 2+1\times 3$