The Number System
Classify the number:
17
Natural, Integer, Rational, Real
7sqrt(36)-2
40
Convert to decimal:
7/11
0.63636363...
Place in order from least to greatest:
pi, 1/5, sqrt(5), 7.5
1/5, sq. root of 5, pi, 7.5
Number of hearts in an octopus
3
Classify the number:
- 5
Integer, Rational, Real
sqrt(1/4)
1/2
Convert to fraction:
0.19
19/100
Find a number in between:
2 3/5 and 2 4/5
See Exs (2.6 and 2.8)
This common "animal" has 5 "hearts"
Earthworm
Classify the number:
sqrt(59)
Irrational, Real
root3(125)
5
Convert to fraction:
5.2222222...
5 2/9
Give me a fraction that creates a decimal with a period of 3 (it repeats every 3 numbers)
See Exs ( ___/999)
The human heart has 4 chambers: Two upper and two lower chambers.
How many chambers are in the heart of a cockroach?
13
Classify the number:
3.457457457457...
Rational, Real
root5(16807)
7
2 1/3 + 5 4/5
8 2/15
Which one makes a rational number:
sqrt(7) + sqrt(7), sqrt(7)*sqrt(7), sqrt(7)/sqrt7, sqrt(7)-sqrt(7)
x and /
Which "animal" has 32 brains?
Leech
Classify the number:
9 2/5
Rational, Real
sqrt(8)*sqrt(2)
4
Convert to decimal:
22/7
3.142857142857...
Rational or Irrational:sqrt(-11)
Note real
Which "animal" has the most "teeth"?
(14000 to 20000 teeth)
Snails