Math Test Unit: Numbers - Part 1 Flashcards
(Fractions) Equivalent fractions -
Equivalent fractions - multiply or divide the numerator and denominator by the same number
(fractions) Subtracting 1. subtract the ___________ 2. same ___________ 3. lowest ___________
Subtracting 1. subtract the numerators 2. same denominator 3. lowest terms
(integers) Subtracting -
Subtracting - add the opposite
(integers) Zero pair -
Zero pair - a pair of integer chips, with one chip representing (+1) and one chip representing (-1), (+1)+(-1)=0
(fractions) Adding 1. add the ____________ 2. same ____________ 3. lowest ____________
Adding 1. add the numerators 2. same denominator 3. lowest terms
Divisibility: 2-
2- the last digit is even
Divisibility: 9-
9- the sum of the digits is divisible by 9
Divisibility: 6-
6- the number is divisible by 2 and 3
(integers) Factors -
Factors - a number that can divide evenly into the number
(integers) GCF -
GCF - the Greatest factor that two numbers share
(integers) Same sign -
Same sign - add the numerals, keep the sign
Divisibility: 10-
10- the last digit is 0
Divisibility: 3-
3- the sum of the digits is divisible by 3
Divisibility: 8-
8- the number can be divided by 2 at least 3 times
Divisibility: 5-
5- the last digit is a 0 or 5
(integers) Opposite signs(-,+) -
Opposite signs(-,+) - subtract the numerals, keep the sign of the larger numeral
Divisibility: 4-
4- the number can be divided by 2 twice
(integers) Opposite integers -
Opposite integer - two integers with the same numeral but different sign
(fractions) Lowest term fraction -
Lowest term fraction - no common factors other than 1 between the numerator and denominator. Divide the numerator and denominator by the GCF (Greatest Common Factors)