Addition
The only thing you do when adding in equations
Do you add the amount being subtracted to the sum to get x?
The only thing you do when subtracting in equations
Do you subtract from the sum to get x?
When multiplying (in inequalities and equations), you have to make sure to do this
Do you match the signs of the number you're trying to get rid of from the variables side?
When dividing (in inequalities and equations), you have to make sure to do this
Do you match the signs of the number you're trying to get rid of from the variables side?
If you buy 4 packs of candy, with each pack containing 12 pieces, how much candy do you have in total?
Do you have 48 pieces of candy?
The only thing you do when adding in one-step inequalities
Do you add to both sides to get rid of a term (on the variables side)?
The only thing you do when subtracting in one-step inequalities
Do you subtract from both sides to get rid of a term (on the variables side)?
When multiplying (in inequalities and equations), you do this to both sides
Do you multiply both sides [by the same number]?
When dividing (in inequalities and equations), you do this to both sides
Do you divide both sides [by the same number]?
If there are 56 apples and you need to distribute them between 8 baskets, how many apples do you put in each?
Do you put 7 apples in each basket?
When adding in inequalities, you have to make sure to do this
Do you match the signs?
When subtracting in inequalities, you have to make sure to do this
Do you match the signs?
This happens when both sides are multiplied by a negative number
Do they become negative/positive depending on their signs?
This happens when both sides are divided by a negative number
Do they become negative/positive depending on their signs?
John is 8 years older than Jane, and their ages sum up to 36. How old is Jane?
Is Jane 14 years old?
EQUATION
x - 5 = 3
x = 8
EQUATION
x + 16 = 20
x = 4
EQUATION
4x = 20
x = 5
EQUATION
15/3 = x
x = 5
If a shirt costs $25 and you bought 3 shirts, how much did you spend in total?
Did you spend $75?
TWO STEP INEQUALITY
2x - 3 < 9
x < 6
TWO STEP INEQUALITY
6x + 6 > 24
x > 3
TWO STEP INEQUALITY
3x - 7 > 21
x > 21
TWO STEP INEQUALITY
4 + 7 > 15
x > 2
A train travelling at 60 mph leaves a station at 8 AM. Another train travelling at 45 mph leaves the same station at 9 AM. At what time will the second train catch up to the first train if they are travelling on the same track?
Do they catch up at 1 PM?