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What is 1 + 3?
Properties in math.
If a=b then b=a
If a=b and b=c then c=a
a(b+c)=ab+ac and (a+b)c=ac+bc
Inverse Property of Multiplication
1/a=1 and 1/a
Inverse Property of Addition
a+(-a)=0 and (-a)+a=0
Identity Property of Multiplication
1=a and 1
Identity Property of Addition
a+0=a and 0+a=a
Associative Property of Addition
(a+b)+c=a+(b+c) grouping changes
Associative Property of Multiplication
(ab)c=a(bc) Grouping Changes
Commutative Property of Addition
a+b=b+a order changes
Commutative Property of Multiplication
a order changes
Closure Property of Multiplication
a*b is a unique real number (one number)
Closure Property of Addition
a+b is a unique real number (one number)