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Worksheets

Number systems

Total questions: 12

Worksheet time: 22mins

Name
Class
Date
1.

The number 10101011 written in the Roman system

a)

CLXXI

b)

CVIII

c)

LLLXXI

d)

CXXXCI

2.

The number 3,345,089 written in expanded form is

a)

(3x2^6)+(3x2^5)+(4x2^4)+(5x2^3)+(8x2^1)+(9x2^0)

b)

3,000,000+300,000+450+80+9

c)

3+3+4+5+0+9

d)

(3x10^6)+(3x10^5)+(4x10^4)+(5x10^3)+(8x10^1)+(9x10^0)

3.

The place value of the fifth position in decimal number system is

a)

10^5

b)

10,000

c)

1^5

d)

10,000^5

4.

The value of the digit 1 in the sixth position in a binary system is

a)

32

b)

64

c)

128

d)

16

5.

Michael Joseph Jackson was born in August,XXIX- MCMLVIII, was an American singer, songwriter, and dancer.

How old is Michael?

a)

63

b)

67

c)

61

d)

58

6.

How much is MMCMXLVI (Roman number) minus 1011001 (Binary number) is

a)

2,761

b)

3,131

c)

10,108,055

d)

2857

7.

The product of XCII and XV is

a)

2,347

b)

1,380

c)

9,915

d)

84

8.

If a doctor prescribes 3 pills to take one every XXX minutes. How long is the treatment?

a)

1 hour

b)

1 hour and a half

c)

2 hours

d)

2 hours and a half

9.

Solve the following operation


101010 + LIX + 34

Binary +Roman+Decimal

a)

140-------decimal number

b)

CXXXV--------roman number

c)

1010---------binary number

d)

None

10.

Who is the best teacher in the whole wide world?

a)

Christian

b)

Liliana

c)

Santiago

d)

Julio profe

11.

3,456,029 in written form

a)

Three millions four hundred thousand fifteen six thousand two tens nine

b)

three thousand million six four hundred twenty nine thousand

c)

Three million four hundred thousand fifty six thousand twenty hundred nine

d)

Three million four hundred fifty six thousand twenty-nine

12.
Which shows 64,879 in expanded form?
a)
6+4+8+7+9
b)
600,000+4,000+80+79
c)
60,000+4,000+800+70+9
d)
60,000+400+80+70+9