Vocabulary
- Define and give an example of "opposites"
- Define and give an example of a "square root"
- 2 integers that are the same distance from 0
- √ symbol. √25 = 5
• -5 + 2 =
• √4 =
• -3
• 2
• 30 + (-10) =
• Round to the nearest tenth: 1.34
• 20
• 1.30
• -84 + (-11) =
• Round to the nearest hundredth: 3.375
• -95
• 5.380
• What does having "negative" money mean?
• Is the square root of 34 a perfect square?
• being in debt, owing money you don't have, etc.
• No
- Draw a number line with negatives and positives
- Give an example of a "perfect square"
- answers vary
- √9, √16, √100, etc.
• 1 + (-1) =
• Is this a terminating decimal? 0.45
• 0
• Yes
• 10 - (-2) =
• -√144 =
• 12
• -12
• -99 + (-10) =
• Round to the nearest hundredth: 10.013
• -109
• 10.010
• What is larger: -18 or -81?
• What is larger: √4 or √9?
• -18
• √9
- When you add 2 opposites, the answer is always....
- True or false: √5 is an irrational number
- 0
- True
• -5 + -4 =
• -√81
• -9
• -9
• -40 + (-20) =
• Round to the nearest tenth: 3.55
• -60
• 3.60
• 87 + (-4)
• Round to the nearest hundredth: 8.888
• 83
• 8.890
• What is larger: -8 or 8?
• What is larger: √121 or √100?
• 8
• √121
- True or false: Decimals are integers
- True or false: √100 is a perfect square
- True
• 12 + -20 =
• √121
• -18
• 11
• 49 + (21) =
• Round to the nearest tenth: 10.22
• 70
• 10.20
• 77 - (-22) =
• Round to the nearest hundredth: 0.345
• 99
• 0.350
• What is larger: -28 or -27?
• What is larger: √81 or 10.0?
• -27
• 10.0
- True or false: 0 is a positive integer
- True or false: repeating decimals have a bar over the digit or digits that repeat in a pattern
- False. 0 is neither positive or negative
- True
• 50 + -34 =
• √160 =
• 16
• 20
• 22 - (-18) =
• Round to the nearest tenth: 8.88
• 40
• 8.90
• -33 + 42 =
• Round to the nearest hundredth: 9.543
• 9
• 9.540
• What is larger: -1,778 or -1,878?
• What is larger: √49 or 6.2?
• -1,778
• √49