Math Review - Arithmetic Flashcards
Even + Even = ____ integer
even
00=
Undefined
(a + b) + c =
a + (b + c)
Composite number
- An integer greater than 1 that is not a prime number
- The first ten composite numbers are 4, 6, 8, 9, 10, 12, 14, 15, 16, and 18
Prime number
A prime number is an integer greater than 1 that has only two positive divisors: 1 and itself
1 is NOT a prime number
2 is the only prime number that is even
The first ten prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23, and 29.
50
1
For all nonzero numbers a,
a-3 =
1
a3
Convert this to a fraction:
0.612
612/1000 =
153/250
Convert this to a fraction:
2.3
2 + 3/10 = 23/10
Square root of 16
4 and -4
All positive numbers have two sqaure roots
Odd x Odd = ______ integer
odd
Percent change formula?
Change / Base
or
New value - Old Value / Old Value
Square root of 0 =
0
Convert this to a fraction:
90.17
90 + 17/100 =
9,000 + 17 / 100 =
9,017/100
When a positive odd integer is divided by 2, the remainder is always ____
1