Subtraction Equations SWBAT solve subtraction equations using the addition property of equality when the minuend is unknown; solve subtraction equations using the addition property of equality when the subtrahend is unknown

Solving Equations  What are the 2 rules you need to remember when solving equations? –Keep it balanced!! –Isolate the variable  What is the inverse (or opposite) operation of subtraction? (How do you un-do subtraction) –Addition

Fact Families  = 6  6 – 2 = 4  6 – 4 = 2  = 10  10 – 4 = 6  10 – 6 = 4  a + b = c  c - b = a  c - a = b

Examples  x – 1456 = 234  58 – z = 29  p – ( ) = 135  8.7 = e – ( )  – b = 17.82

Try the problems on your paper  t =  c = $3.81  b = 4.15  f = 55,317  s = 1594