Week #7 - M (p. 14, 17, 18, 20) Add/Subtract Integers

M1 p. 14

1.   +10             2.  -7               3.  +6          4.  -5           5.  +3        6.  -3 7.  -261             8.  +68            9.  +101      10.  -15        11.  -65     12.  +87 13.  -2              14.  +17          15.  +114     16.  +95       17.  -38     18.  -66 19.  -58            20.  +80          21.   -123     22.  -476      23.  -71     24.  +129 25.  +35           26.  +297        27.  -776      28.  +152     29.  -103    30.  -24

M3 p. 18

M2  p. 17

1.  +8         2.  +14          3.  -11 4.  -19        5.  -3            6.  +7 7.  -4          8.  +5           9.  -66 10.  -47     11.  +23        12.  -30 13.  +3      14.  -8           15.  +1 16.  -4       17.  -9           18.  -324

1.  +3, +9, -3 +9 = 6 2.  -7, -21, 7 + -21 = -14 3.  +9, +6, -9 +6 = -3 4.  -5, -10, 5 + -10 = -5 5.  0, +8, 0 + 8 = 8 Addition Rule #1 When adding two integers with the same sign, add the numbers and place the sign of the numbers before the answer. Addition Rule #2 When adding two numbers with unlike signs, first find the difference between the two numbers.  Then place the sign of the larger number (with the highest absolute value) before the answer. Subtraction Rule When subtracting integers, mentally change the sign of the subtrahend and add the result to the minuend. (Add the opposite)

M4 p. 20

19. a.  Diagram should show ball on your 40-yard line b.  Ball on 50 - yard line c.  Ball on opponent's 40-yeard line d.  Ball on opponent's 45 - yard line f.  Ball on opponent's 10-yard line 20. a.  50 - yard line b.  Your 45-yard line c.  Opponent's 40-yard line d.  Opponent's 45 - yard line e.  Opponent's 10 yard line f.  50 yards g.  15 yards, +