Show:
Addition
Subtraction
Multiplication
Division
Rules
100
2 + 3
What is 5
100
3-2
What is 1
100
4 x 7
What is 21
100
12 ----- 3
What is 4
100
positive x positive =
What is positive
200
-5 + -2
What is -7
200
10 - (-2)
What is 12
200
-3 x -8
What is 24
200
20 ----- -4
What is -5
200
positive x negative =
What is negative
300
-5 + 3
What is -2
300
4-5
What is -1
300
-5 x 3
What is -15
300
-45 ----- -9
What is 5
300
negative x negative
What is positive
400
-20 + -11
What is -31
400
15- (-7)
What is 22
400
(-3)^2
What is 9
400
15 ----- 0
What is 0
400
(-n)^2 Looks like what?
What is (-n) x (-n)
500
-20 + l-19l
What is -1
500
l-15l - 3
What is -18
500
-4^2
What is -16
500
-144 ------ 12
What is -12
500
-n^2 Looks like?
What is -(n x n)