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Integer Test Review

Practice with Integer Operations and PEMDAS

QuestionAnswer
-15 + 7 -8
-2 + (-40) -42
12 - (-8) 20
-6 - (-4) -2
-12(9) -108
-5(-8) 40
-63 / (-9) 7
-72 / 6 -12
15 + (-8) 7
-4 - (-5) 1
-7(3) -21
-72/(-3) 24
5 - (-5) 10
1 - 7 -6
3(-12) -36
-48 / (-4) 12
TRUE or FALSE? (Hint: make up a problem and test it out) The sum of two positive integers is always positive. TRUE sample: 10 + 10 = 20
TRUE or FALSE? (Hint: make up a problem and test it out) If x and y are both negative integers, and x is less than y, then the difference of x and y is always positive. FALSE sample: x = -2 and y = -1 x - y = -2 - (-1) = -1
TRUE or FALSE? (Hint: make up a problem and test it out) The product of an even number of negative integers is always positive. TRUE sample: -2(-2)(-2)(-2) = 4(4) = 16
TRUE or FALSE? (Hint: make up a problem and test it out) Let m and n be integers. If the quotient of m and n is negative, then m and n have different signs. TRUE sample: m = -35 and n = 7 -35 / 7 = -5
Fill in the blank with <, > or = -8 - 2 + 7 _____1 - (-4) - 2 <
Fill in the blank with <, > or = . 1 - (-1) - 1 ____ -1 + (-1) + 3 =
Fill in the blank with <, > or = 6 / 2 x (-1)_____1 / 1 x (-4) >
Fill in the blank with <, > or = -3 x 8 /(-4)_____6 /(-3) x (-2) >
Evaluate if x = -7: -5 - x 2
Evaluate if x = 2: 1 - x + (-3) -4
Evaluate if y = -3: 18 / y -6
Who has the correct answer to 7 + (-2)? Caleb: 5 or Olivia: -9 Caleb
Who has the correct answer to -6(-7)? Daniel: -42 or Andrew: 42 Andrew
Who has the correct answer to 14 / (-7) x 5? Emily: -10 or Joshua: -7 Emily
Who has the correct answer to -1 + (-2) - 3? Grace: -6 or Suki: -1 Grace
What term, integer or absolute value, means " the distance the a number is from zero on the number line "? absolute value
What term, integer or absolute value, means " any positive or negative whole number, or zero "? integer
What operation, add, subtract, multiply or divide goes along with this verse of the song? "Change the minus to a plus, change the sign of the next, now all you do is add them up as if they were a plus" subtract
What operation, add, subtract, multiply or divide goes along with this verse of the song? "Same signs add and keep, Different signs subtract. Take the sign of the higher value, then you'll be exact." add
What operations, add, subtract, multiply and/or divide go along with this verse of the song? "Same signs and positive thing, Different signs are bad. That's how you multiply and how you divide." multiply and divide
Order the following from least to greatest: -76, -80, 15, -95, -100, -25, 0 -100, -95, -80, -76, -25, 0, 15
25 - 2(3)(6) + 1 -10
(-6) squared 36
-6 + (-81) / 9 -15
(-6)(-5) + 10/2 35
-7 + (-2 x 4) x 3 -31
Created by: jcavalier