IWBAT compare and order positive and negative numbers

IWBAT compare and order positive and negative numbers.

Numbers get larger from left to right.

IWBAT add and subtract integers.

Adding two positive numbers (Normal adding) *Integers without a sign are positive Adding two negative numbers (Normal adding but answer is negative) Adding Integers Adding a positive and a negative number (Subtract numbers and take the number with the larger absolute value Absolute Value – The number of spaces an integer is away from zero.

1) 2 + -7 7 -2 2) 5 + 3 8 3) -4 + -8 4) 9 + -5 4+8 9 -5 5 12 4 -5 -12 5) -12 + 2 12 - 2 10 -10 *A negative sign is the same as subtraction 9 + -5 = 9 - 5

1 Convert into addition problem 2 If just subtraction sign, squeeze in an addition sign to the left. 3 If subtraction sign AND negative (double negative), merge to make an addition sign.

1) -3 - 7 2) 1 - -8 3) -7 -3 + -7 1+8 -7 + 7 3+7 9 10 0 -10 4) 5 - -5 5) 8 - 10 6) 0 - 7 5+5 8 + -10 0 + -7 10 -2 -7

IWBAT multiply and divide integers

IWBAT write and evaluate algebraic expressions with integers

� Algebraic Expression – a math sentence that contain a variable but does not have an equal sign � Input Table – A table that gives you numbers to input (substitute) and results in a patterned output

n 5 – 3 n 2 -1 -4 1) 5 – 3(2) 5– 6 -1 2) 5 – 3(-1) 5 – (-3) 5+3 8 3) 5 – 3(-4) 5 – (-12) 5 + 12 17 n 5 – 3 n 2 -1 -1 8 -4 17

x 2 x -1 0 2 1) 2(-1) -2 2) 2(0) 0 3) 2(2) 4 x 2 x -1 -2 0 0 2 2

x 3 x - 2 2 -2 -3 1) 3(2) - 2 6– 2 4 2) 3(-2) - 2 -6 – 2 -6 + -2 -8 3) 3(-3) - 2 -9 – 2 -9 + -2 -11 x 3 x - 2 2 4 -2 -8 -3 -11