Math 8H Midterm

Terms

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natural #s: {1, 2, 3 ...} counting #s
whole: natural #s and 0
integers: whole #s & their opposites
{....-3,-2,-1,0,1,2,3.....}
rational: any # that can be written in form of fraction
irrational: any # that can NOT be written in form of fraction
real: all irrational and rational #s
whole #s less than 10: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
natural numbers between 4 and 9: 5, 6, 7, 8
intergers less than or equal to 3: ...-3, -2, -1, 0, 1, 2, 3
T/F- between any two whole #s there is another whole number: false
T/F- every whole number is an integer: true
T/F- every interger is a whole number: false
T/F-some #s are both rational and irrational: false
T/F- the set of rational #s can be listed: false
T/F- There is a fraction that will produce decimal, .34343434 etc.: false
A/S/N square root of natural # is rational.: sometimes
to find new amount: New A= (100% + increase%) x original or
(100% - decrease%) x original
T/F- set of rational #s includes the set of integers: true
T/F- zero is in the set of natural numbers: false
T/F- âˆš3 is a real number: true
T/F- between any two natural numbers there is another natural number.: false
A/S/N: square root of a whole number is rational: SOMETIMES
YES/NO: is every natural number a whole number?: yes
YES/NO: is every irrational number a real number?: yes
list the intergers between -3 and 3: -3, -2, -1, 0, 1, 2,
list whole numbers less than 5: 0, 1, 2, 3, 4

Number of cards 26