Lesson 2. 1 • How do you order integers? – To order integers, you have to compare them. • You can use a number line to do so if needed.
Lesson 2. 2 – 2. 3 • How do you add and subtract integers? – Same Signs Add the absolute values and keep the sign – Different Signs Subtract the lesser absolute value from the greater absolute value and keep the sign of the integer with the greater absolute value
Lesson 2. 4 – 2. 5 • How do you multiply and divide integers? – Same Signs The product and quotient of two integers with the same sign is positive. – Different Signs The product and quotient of two integers with different signs is negative.
Lesson 2. 6 • How do you properties to evaluate expressions? – You can use properties to rewrite problems to make mental math easier.
Lesson 2. 7 • How do you use the distributive property to evaluate expressions? – Multiply what is on the outside of the parentheses by EACH term inside the parentheses. – Simplify if necessary.
Lesson 2. 8 • How do you identify and plot points in a coordinate plane? – To identify a point: determine how many units left or right of the origin the point is located for the xcoordinate, above or below the origin the point is located for the y-coordinate. – To plot a point: begin at the origin and move to the right if the x-coordinate is positive and left if negative, then move up if the y-coordinate is positive or down if negative.