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Unit 1 Test Review: Multiplying and Dividing Integers, Vocabulary, and Word problems Flashcards | StudBud
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Unit 1 Test Review: Multiplying and Dividing Integers, Vocabulary, and Word problems
Unit 1 Test Review: Multiplying and Dividing Integers, Vocabulary, and Word problems
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1
A negative times a positive is always a........
Negative
Positive
It depends
2
The rules for multiplying integers and dividing integers are...
the same
sometimes the same
different
3
Dolphin A dove 40 ft below sea level; Dolphin B dove 5 times deeper. How deep is Dolphin B?
-40 x 5= -200; Dolphin B is -200 ft below sea level.
-40 x 5 =-200; Dolphin B is 200 ft below sea level.
-40 ÷ 5= -8; Dolphin B is 8 ft below sea level.
-40 x -5= 200; Dolphin B is 200 ft below sea level.
4
A football team lost 20 yards, then gained 10 yards. What is their change in yardage?
20 + 10 = 20; The team gained 30 yards .
-20 + -10= -30; The team lost 30 yards .
20 + -10 = 10; The team gained 10 yards.
-20 + 10 = -10; The team lost 10 yards .
5
The Absolute Value of a number is....
The additive inverse of that number
the positive distance between a number and zero
the opposite of that number
alway positive
6
Hikers descend a mountain at a speed of 20 miles per hour. How long until they descend 140 mi?
-140 ÷ 20 = -7; It will take -7 hours to descend 140 miles.
-140 ÷ -20 = 7; It will take 7 hours to descend 140 miles.
140 ÷ 20 = 7; It will take 7 hours to descend 140 miles.
140 - 20 = 120; It will take 120 hours to descend 140 miles.
7
8 ÷ -2 = ______
-4
-16
4
16
8
Integers include
Positive whole number
Negative Whole numbers
Negative fractions
Negative Decimals
9
A new car decreases $200 in value each year. How many years until its value decreases by $600?
600 ÷ 200= 3, It will take 3 years.
-600 ÷ 200 = -3; It will take -3 years.
-600 ÷ -200 = 3; It will take 3 years.
600 ÷ -200 = -3; It will take -3 years.
10
A plane descends 200 ft in the air then ascends 100 ft. What is the planes change in elevation?
-200 + 100 = -100; The plane dropped -100 ft in the air.
-200 + -100 = -300; The plane dropped 300 ft in the air
200 + -100 = 100; The plan rose 100 ft in the air
-200 + 100 = -100; The plane dropped 100 ft in the air.
11
11 · -4 = ______
-44
7
22
44
12
How many zero pairs can you make in the problem -9 + -6?
15
0
6
9
13
A kite falls 20 ft in the air, then rises 50 ft in the air. What is its new position?
20 + 50= 70; the kite rises 70 ft in the air.
-20 + 50= 30; the kite falls 30 ft in the air.
-20 + 50 = 30; the kite rises 30 ft in the air.
-20 + -50 = -70; the kite falls 70 ft in the air.
14
How many zero pairs can you make in the problem -9 + 6?
6
9
15
0
15
A negative times a negative always equals a.....
It depends...
Positive
Negative
16
A lake's water level drops 2 ft per day. What is its change in water level after 3 days?
-2 · 3 = -6; The water drops 6 ft.
-2 · -3 = 6; The water rises 6 ft.
-2 · 3 = -6; The water drops -6 ft.
-2 · 3 = -6; The water rises 6 ft.
17
-9 ÷ -3 = ______
27
-27
3
-3
18
You can use this triangle to help you _____________________ integers.
Add
Subtract
Divide
Multiply
19
-10 · -5 = ______
-2
2
50
-50
20
George has $400 in the bank. He buys a $800 computer and $400 PS4. How much money does he have?
400 – 800 – 400 = -800; George has a debt of -$800
400 + 800 +400 = 1600; Geroge has $1600
400 – 800 – 400 = -800; George has a debt of $800.
400 - 800 + 400 = 0; George has $0.
