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7th Grade Unit 1 Review! Flashcards | StudBud
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7th Grade Unit 1 Review!
7th Grade Unit 1 Review!
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#math #7thgrade
Flashcards
44 cards
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Questions
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Answers
1
What does Understand mean in the 4 step method for problem solving?
You know it is time for the class to be over.
You understand when it is time to skip to the next step
Read the directions and question carefully.
You already understand the problem and solution.
2
Using 16x, what is the value of the 100
th
position?
160
1600
4
16
3
Find the algebraic expression
(2 + 3)2
x2 + 2
36 - 2
2 ⋅ 34 + 56 ÷ 9
4
in what direction do we solve multiplication and division while using the Order of Operations?
left to right
any direction
bottom to top
right to left
5
an algebraic expression has to have at least one number, one math operation and...
an answer
an equals sign
peanut butter
a variable
6
What is the acronym for the Order of Operations?
LIVMAS
PEMDAS
KHDMDCM
MVEMJSUN
7
What is a variable?
a word that describes how able someone is... very able!
a number that solves the problem
a letter of an unknown value
an ingredient used when baking cookies!
8
what basic math operations are represented by exponents?
multiplication
repeated multiplication and division
repeated addition and subtraction
subtraction
9
What step is next in this problem? [ 3 - 4 ⋅ 5
2
] ÷ 6
4 ⋅ 5
5 ÷ 6
3 - 4
52
10
what is the special name given to an exponent to the 3rd power?
triangled
powered
rounded
cubed
11
a + 0 = a What property is shown?
associative
distributive
identity
commutative
12
What does "solve an equation" mean?
Isolate the variable
do math
rewrite the question and hope Mr. C does not notice...
locate the equals sign
13
What parts make up an equation?
a variable and an operation
a function rule
equality
2 expressions separated by an equals sign
14
If you are given the area of a square, how do you find the length of one side?
take the square root of the area
guess until it looks almost correct
there is not enough information
divide by 4 sides
15
What are the 4 steps in our problem solving plan?
Unknown, Pecans, Sand, Cash
Understood, Prioritize, Submit, Challenge
Understand, Know, Solve, Continue
Understand, Plan, Solve, Check
16
What do we do first in this problem? [ 3 - 4 (2 + 3)
2
] ÷ 6
4 ⋅ 2
3 - 4
2 + 3
32
17
Which of these are valid problem solving strategies
look for a pattern
estimate reasonable answers
use a graph
guess and check
18
what is exponential form of 3 ⋅ 3 ⋅ 3 ⋅ 3 ⋅ 3
35
3 ⋅ 5
5 ⋅ 3
53
19
3, 4, 5, 7 How do you start writing the domain of this sequence?
D:{
In:{
{
[
20
In an arithmetic sequence what operation are you repeating?
addition
multiplication
division
subtraction
21
2 numbers multiplied together to form a product is called...
addends
variables
factors
integers
22
what branch of mathematics does algebra represent?
geometry
math with letters
everything
statistics
23
what is the special name given to an exponent of the 2nd power?
rectangled
squared
circled
cubed
24
a (b + c) = ab + ac What property is shown?
identity
associative
commutative
distributive
25
What does range stand for?
output
large fields of grass
function rule
input
26
5 + 4(3)
2
What step do i perform first?
122
4 ⋅ 3
5 + 4
32
27
What does domain stand for?
illuminati
doorway
input
output
28
16, 24, 32, 40, 48 What is the expression shown in this sequence?
8x
8 - x
x ÷ 8
8+x
29
what is the exponent in this problem? 78
63
3
63
18
78
30
a + b = b + a What property is shown?
identity
distributive
commutative
associative
31
standard form of 4
8
4 ⋅ 8
4 ⋅ 4 ⋅ 4 ⋅ 4 ⋅ 4 ⋅ 4 ⋅ 4 ⋅ 4
8 ⋅ 8 ⋅ 8 ⋅ 8 ⋅ 8 ⋅ 8 ⋅ 8 ⋅ 8
8 ⋅ 8 ⋅ 8 ⋅ 8
32
what is the base in this exponential problem? 42
7
4
7
42
27
33
When plugging in values for variables, what is important to add as well?
the answer
parenthesis
snacks
an extra equals sign at the end
34
which of these is a numerical expression?
4 + 7 ⋅ x2 - 5 ÷ 2
x2
a + b ⋅ 32 - c ÷ 2
4 + 7 ⋅ 32 - 5 ÷ 2
35
Are you enjoying still math class?
I never stopped!
Yes, even though it is harder...
Kind of, but you are losing my interest Mr. C...
not really, but I'm too nice to say no...
36
What step do we perform [ 3 - 4 ⋅ 25 ] ÷ 6
25 ÷ 6
solve
4 ⋅ 25
3-4
37
A relationship with one input and one output is called a(n)
numerical equation
function rule
domain
range
38
What step do we need to perform next? [ 3 - 100
] ÷ 6
3 - 100
100 ÷ 6
3 ⋅ 6
39
a + (b + c) = (a + b) + c What property is shown?
distributive
commutative
associative
identity
40
When forming an equation from a word problem, what is important to do?
Check if it makes sense
pick variables that look like numbers to confuse Mr. C
word problems are not important
make sure your equation has an operation with the variable
41
What is the name of this math sign?
division
checkmark
radical
42
What is special about the equations of function rules?
they have 2 equal signs
it is an unknown box that changes numbers
they are normal equations
they have 2 variables
43
What step do most students skip in the 4 step problem solving method?
Plan
Check
Understand
Solve
44
when working a math problem, what is the first step in the Order of Operations?
addition and subtraction
parenthesis
exponents
multiplication and division
