You L.C.O then take the sign of the bigger number.
What is the subtraction rule
100
-16(-5)
What is 80
100
Evaluate.
wyx
w = 4
x = -8
y = 5
What is -160
100
13 - 7
What is 6
200
12 - 5 + (-3)
What is 4
200
Tell me the addition rule.
Same signs = add and keep sign
Different signs = subtract and take the sign of the bigger number.
200
-9 squared
What is 81
200
3x
x = -8
What is -24
200
-99 - (-3)
What is -96
300
25 + -3
What is 22
300
Evaluate and tell me how you got the answer.
15 - -9
24
300
45/-9
What is -5
300
Evaluate
72/-8
What is -9
300
p - k
p = 6
k = -3
What is 9
400
7 + (-19) + (-7)
What is -19
400
Tell me the division rule.
Same sign = divide and positive answer
Different signs = divide and negative answer
400
-3a squared
a=-6
What is 324
400
Evaluate.
-18/9
What is -2
400
21 - (-37) + -9
What is 49
500
Write an addition expression to describe the following situation. Then evaluate the expression:
Lena was scuba diving 14 meters below the surface of the water. She saw a nurse shark 3 meters above her.
What is -11
500
Evaluate and tell me how you got the answer.
-15/3
What is -5; I know that 15 divided by 3 is 5 and division rule tells me that different signs = negative answer.
500
Tamika's aunt writes a check for $150 each month for her car loan. She writes a check for $300 twice a year to pay for car insurance. Write an expression involving multiplication and addition to describe how these expenses affect her checking account balance on a yearly basis. Then evaluate the expression.
What is 150(12) + 300(2); $2400
500
Tamera owns 100 shares of certain stock. Suppose the price of the stock drops by $3 per share. Write a multiplication expression to find the change in Tamera's investment. Explain the answer.
What is 100(-3) = -300
500
A quarterback is sacked for a loss of 5 yards, On the next play, his team receives a penalty and loses 15 more yards. The team gains 12 yards on the third play.