# Decimal Number System and Other Numbering Systems

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Arithmetic Learning Material
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Revision
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1.7Decimal Number System and Other Numbering Systems

## Decimal Number System and Other Numbering Systems Revision Questions

1. Which of the following numbers is the regular form of 5 × 107 + 3 × 104 + 9 × 101?

1. 539
2. 5,003,009
3. 50,003,009
4. 50,030,090

2. The number 40,500 when written in decomposed form becomes...

1. 4 × 105 + 5 × 103
2. 4 × 104 + 5 × 102
3. 405 + 503
4. 40 × 103 + 5 × 102

3. The binary number 11010 corresponds to ................... in the decimal system

1. 26
2. 28
3. 50
4. 52

4. The number 89 when written in the binary system becomes

1. 1010100
2. 1011100
3. 1011001
4. 1101011

5. What is the result of the binary operation 11011 + 110?

1. 100001
2. 10010
3. 11111
4. 101101

6. What number in the decimal system does the result of binary operation 11101 - 1100 correspond?

1. 16
2. 17
3. 18
4. 19

7. What is the binary result of the operation 10011 × 111?

1. 133
2. 10000101
3. 1000101
4. 1011011

8. What is the binary result of the operation 11000 ÷ 11?

1. 1000
2. 1111
3. 101
4. 111

9. Which of the numbers is the greatest?

1. (AB)16
2. (171)10
3. (10101011)2
4. (100)16

10. Which of the binary equalities below is true?

1. 111 × 11 = 10010 + 100
2. 1011 + 1001 = 101 × 100
3. 11110 ÷ 110 = 1101 - 101
4. 111 - 11 = 1011 ÷ 111

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