1 of 29

2 of 29

Pick a number between 1 and 63 (inclusive) and tell me which box(es) the number appears in and I will tell you what your number is.

3 of 29

10110

What is this number ?

4 of 29

104

103

102

101

100

10000

1000

100

10

1

decimal (base 10)

0

1

1

0

1

1 x 10000 = 10000

0 x 1000 = 0

1 x 100 = 100

1 x 10 = 10

0 x 1 = 0

10110

5 of 29

104

103

102

101

100

10000

1000

100

10

1

decimal (base 10)

2

0

7

9

5

5 x 10000 = 50000

2 x 1000 = 2000

0 x 100 = 0

7 x 10 = 70

9 x 1 = 9

52079

6 of 29

24

23

22

21

20

4

2

1

binary (base 2)

16

8

164

163

162

161

160

65536

4096

256

16

1

hexadecimal (base 16)

28

27

26

25

64

32

256

128

104

103

102

101

100

10000

1000

100

10

1

decimal (base 10)

2

7 of 29

24

23

22

21

20

4

2

1

16

8

28

27

26

25

64

32

256

128

0

1

1

0

1

1 x 16 = 16

0 x 8 = 0

1 x 4 = 4

1 x 2 = 2

0 x 1 = 0

22

binary (base 2)

8 of 29

24

23

22

21

20

4

2

1

16

8

28

27

26

25

64

32

256

128

1

0

1

0

1

1

0

1

1 x 128 = 128

1 x 32 = 32

1 x 16 = 16

1 x 8 = 8

1 x 2 = 2

186

Which place value must you have for all odd numbers

Which numbers must have the place value

2

Which numbers must have the place value

4

9 of 29

24

23

22

21

20

4

2

1

16

8

28

27

26

25

64

32

256

128

2810 = ? 2

10 of 29

24

23

22

21

20

4

2

1

16

8

28

27

26

25

64

32

256

128

1

1

0

0

1

0

0

0

0

2810 = 11100 2

28 - 16 = 12

12 - 8 = 4

4 - 4 = 0

2810 = ? 2

GO

If remaining number is greater or equal to place value put a 1 for that place value.

11 of 29

24

23

22

21

20

4

2

1

16

8

28

27

26

25

64

32

256

128

23810 = ? 2

12 of 29

24

23

22

21

20

4

2

1

16

8

28

27

26

25

64

32

256

128

23810 = 11101110 2

1

1

1

0

0

1

1

1

0

238 - 128 = 110

110 - 64 = 46

2 - 2 = 0

46 - 32 = 14

14 - 8 = 6

6 - 4 = 2

23810 = ? 2

13 of 29

Perseverance

rover

Mars Landing

Feb 18, 2021

14 of 29

15 of 29

16 of 29

17 of 29

18 of 29

24

23

22

21

20

4

2

1

binary (base 2)

16

8

164

163

162

161

160

65536

4096

256

16

1

hexadecimal (base 16)

28

27

26

25

64

32

256

128

104

103

102

101

100

10000

1000

100

10

1

decimal (base 10)

19 of 29

0 1 2 3 4 5 6 7 8 9

Decimal is base 10 with 10 "symbols"

0 1

Binary is base 2 with 2 "symbols"

0 1 2 3 4 5 6 7 8 9 ? ? ? ? ? ?

Hexadecimal is base 16 with 16 "symbols"

0 1 2 3 4 5 6 7 8 9 A B C D E F

10 11 12 13 14 15

20 of 29

164

163

162

161

160

65536

4096

256

16

1

2

4

A

C

2 x 4096 = 8192

4 x 256 = 1024

10 x 16 = 160

12 x 1 = 12

9388

0

21 of 29

164

163

162

161

160

65536

4096

256

16

1

927910 = ? 16

22 of 29

927910 = 243F16

164

163

162

161

160

65536

4096

256

16

1

2

4

3

F

9279 - 2(4096) = 1087

15 - 15(1) = 0

1087 - 4(256) = 63

63 - 3(16) = 15

927910 = ? 16

0

23 of 29

164

163

162

161

160

65536

4096

256

16

1

63610 = ? 16

24 of 29

63610 = 27C16

164

163

162

161

160

65536

4096

256

16

1

0

2

7

C

12 - 12(1) = 0

636 - 2(256) = 124

124 - 7(16) = 12

63610 = ? 16

0

25 of 29

What is the value of LASA32?

(21 x 323) + (10 x 322) + (28 x 32) + 10 = 699274

Base 32?

26 of 29

27 of 29

binary is the same as base 2

decimal is the same as base 10

hexadecimal is the same as base 16

28 of 29

29 of 29

What's next ...

1st

2nd

3rd

4th

LASACS