True or false: A positive number is a real number that is less than zero.
False! That is a negative number!
True or false: 50 is a whole number AND a positive number
TRUE!
Determine which expression has a greater value: -8 + 10 - 5 OR -7 - 4 + 15
-8 + 10 - 5 < -7 - 4 + 15
True or false: The sum is how much one number differs from another
FALSE! That is the DIFFERENCE!
15 + 16
31
-8 - (-9) =
1
17 - 5 - 4 =
8
-13 + -13
-26
True or false: The sum of a number and its additive inverse is zero.
TRUE!
Determine which expression has a greater value: -3 + 9 - 7 OR -3 - 5 + 11
-3 + 9 - 7 < -3 - 5 + 11
-10 + 5
-5
41 - 3 + 3 =
41
8-9 =
-1
-10 + 20 - 7 =
3
How can you use absolute value to add integers with the same sign?
You add their absolute values, then add back the appropriate sign.
True or false: The absolute value of a number gives its distance from zero.
TRUE!
-9 + -10
-19
7 + 27
34
-12 + 24
12
18 + -5
13
15 - 20 =
-5
20 + 9 - 7 =
22
A bus with 25 people makes a stop in the morning, letting off 10 people and letting on 6. The bus makes another stop a few minutes later to let off 2 more people. How many more or fewer people are on the bus after the second stop?
19
8 + -16
-8
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