Jane needs to pay her parents $300. She already has $125 and earns $15 a week. Write an expression to show how many weeks it will take her to save up all of the money.
125 + 15x
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20
Solve the expression: 3(4+7) - 2(3-1)
29
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25
Everytime Kyle and Leah play basketball, Kyle makes 1/3 as many shots as Leah does. Write an expression to show how many shots Kyle makes.
x/3
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heart
Other team wins 20 points!
Oops!
shark
Other team loses 25 points!
Okay!
shark
Other team loses 5 points!
Okay!
thief
Give points!
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25
15
Write the exponent 3^5 in expanded form.
3 x 3 x 3 x 3 x 3
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25
Are these expression equivalent? 7a x 3b = 21ab
Yes. I can multiply coefficients of any variables so I can multiply 7a and 3b together to get 21ab.
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10
What is a variable? Give an example
A variable is a letter that represents any given number (This is something we do not know in a problem.) Example: 3x + 5 with the x being the variable.
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20
Are these expressions equivalent? 5ab + 7b + 3a - 5ab = 10ab
No. You can only add coefficients of variables that are the same. I cannot add 7a and 3b but I can subtract 5ab from 5ab.
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25
Solve the expression: (4 x 7)^2 + 3(7-5)
778
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25
Simplify the Expression: 3x(x + 3y)
3x^2 +9xy
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thief
Give points!
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25
seesaw
Swap points!
Okay!
fairy
Take points!
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banana
Go to last place!
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25
Solve the exponent 4^4
256
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20
Are these expressions equivalent? 3n - n = n - 3n
No. If you make n=1 the left side would be 3-1 and the right side would be 1-3. Therefore these are not equivalent.
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banana
Go to last place!
Oops!
rocket
Go to first place!
Okay!
shark
Other team loses 25 points!
Okay!
lifesaver
Give 15 points!
Oops!
10
What is an operation? Give an example.
An operation is a symbol (+,-,x,/) that tells us what to do in a math problem. An example would be addition.
