Introduction to Algebra
Matching exercise
Match the items on the right to the items on the left.
Any number multiplied by zero is
For any number a, 1 * a =
The letters which are used to represent or replace numbers .
For any two literals a and b, a + b =
For any literal a, a + 0 =
For any three literals a, b and c, (a + b)+c =
Additive identity
Commutativity and associativity of subtraction are not true for literals.
Multiplication of literals is
For any two literals a and b, ab =
For any three literals a,b and c, (ab)c =
For any literal a, a * 1 =
1
For any three literals a, b and c, a(b+c) = ab + ac
For any three literals a, b and c, (b+c)a =ba + ca
0
a
Literals
b + a
a
a + (b + c)
0
True
Associative and Commutative
ba
a(bc)
a
Multiplication identity
Left Distributivity of multiplication over addition.
Right Distributivity of multiplication over addition.