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Math Review! Test Friday– write these down. Then click to the next slide. Math Review! Copy down each question. Show your work and work individually. If you and your partner disagree discuss and come to an agreement. Then look at the next slide for the answer. Order from least to greatest. 9.2, -7.6, 1, 4.5, -8 Order from least to greatest: Answer -8, -7.6, 1, 4.5, 9.2 3-1 Integers Insert Lesson Title Here Lesson Quiz: Part 2 5. The coldest temperature ever recorded east of the Mississippi is fifty-four degrees below zero in Danbury, Wisconsin, on January 24, 1922. Write the temperature as an integer. –54 Course 2 What is the change in temperature? -32 F to 23 F What is the change in temperature: Answer 55 F Solve the following problem -8 + (-5) Solve the following problem: Answer -13 Multiple Negatives Just tell if it is positive or negative! 1) 2) 3) 4) -Negative -35 = -355 = Negative Positive -34= -332= Positive REMEMBER: An odd number of negatives makes the number negative. An even number of negatives makes the number positive. (The opposite of an opposite!) Solve the following problem 26 + (-18) Solve the following problem: Answer 8 Solve the following problem Sean's bank account has $275 in it. He writes two checks. One for $150 and one for $80. What is Sean's ending balance? Solve the following problem: Answer $45 Solve the following problem I submarine dove 360ft below sea level. It then ascended at 8ft per minute. After 12 minutes at what depth was the submarine? Ascend means to rise…recheck your answer now before you click Solve the following problem: Answer -264ft Insert Lesson Title Here Lesson Quiz Subtract. 1. 3 – 9 –6 2. –7 – 4 –11 3. –3 – (–5) 2 4. Evaluate x – y – z for x = –4, y = 5, and z = 10. –19 5. On January 1, 2002, the high temperature was 81˚F in Kona, Hawaii. The low temperature was –29˚F in Barrow, Alaska. What was the difference between the two 110˚F temperatures? Compare the following numbers Which is greater….what are these called? < > 7/8 __ 4/5 Compare the following numbers: Answer – they are inequalities. 7/8 > 4/5 What is the absolute value? |-8| What is the absolute value: Answer 8 Solve the following problem 8 (-5) Solve the following problem: Answer -40 Solve the following problem -64/-8 Same as -64 divided by -8 Solve the following problem: Answer 8 3-3 Adding Insert Lesson Title Here Integers Lesson Quiz Add. 1. –7 + (–6) 2. –15 + 24 + (–9) 3. –24 + 7 + (–3) –13 0 –20 5. The math club’s income from a bake sale was $217. Advertising expenses were $32. What is the club’s total profit or loss? $185 profit Course 2 3-5 Multiplying Insert Lesson HereIntegers andTitle Dividing Lesson Quiz Find each product or quotient. 1. –8 · 12 2. –3 · 5 · (–2) 3. –75 ÷ 5 4. –110 ÷ (–2) –96 30 –15 55 5. The temperature at Bar Harbor, Maine, was –3°F. It then dropped during the night to be 4 times as cold. What was the temperature then? –12˚F Course 2 Solve the following problem -7 - (-12) Solve the following problem: Answer 5 Order from least to greatest -2/3, 4/3, 2/4, -3/5, 1 Order from least to greatest: Answer -2/3, -3/5, 2/4, 1, 4/3