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7th Grade Review
What's My Number?
Exponents
Equations Galore
Grab Bag
100
The complement to a 30-degree angle
What is a 60-degree angle (60 degrees)?
100
It's my number if seven more than twice my number is 23.
What is 8 ?
100
24 - 42
What is 0 ?
100
4x + 7 = 4 + 7x
What is x = 1 ?
100
It's 2/7, rounded to the nearest tenth.
What is 0.3 ?
200
A quadrilateral with exactly one pair of parallel sides
What is a trapezoid?
200
It's my number if the cube of my number is -64.
What is -4 ?
200
(x2y3z4)5
What is x10y15z20 ?
200
(1/3)p + (1/4)p = 84
What is p = 144 ?
200
It's the number whose square root is 4.
What is 16 ?
300
The ratio of 6 to 9 is the ratio of 9 to this.
What is 13.5 (27/2) ?
300
It's my number, as a fraction, if the reciprocal of my number is 3.5.
What is 2/7 ?
300
When 22012 is divided by 22015, this number results.
What is 1/8 ?
300
w + w - w + w - w = 1 - w - w - w
What is w = 1/4 ?
300
It's the second leg of a right triangle if the first leg is 6 cm and the hypotenuse is 10 cm.
What is 8 cm ?
400
-8 - (8 + 8) + (-8) - (-8)
What is -24 ?
400
It's my number, in scientific notation, if half my number is 6.0 x 104.
What is 1.2 x 105 ?
400
It's the value of (-2)5 + 5-2.
What is -31.96 ?
400
m2 + 4(2m - 7) = m(m + 90)
What is m = 4 ?
400
If x = 88 and y = 44, it's the value of 0.5(2x - 2y) - 2(0.5x - 0.5y).
What is 0 ? (The expression simplifies to x - y - x + y, which is 0 for all values of x and y anyway!)
500
It results when 3x + 6y - 9 is factored.
What is 3(x + 2y - 3) ?
500
It's my number if the sum of my number and your number is 20 but your number subtracted from my number equals 12.
What is 16 ?
500
[(a + a + a)2][(a + a)3]
What is 72a5 ?
500
4y + 2y - y + 0.5y - 0.25 = 0.25y - 0.5 + 1 - 2 + 4
What is y = 11/21 ?
500
Taxi A charges a flat rate of $4.75 plus $0.75 for each mile driven. Taxi B charges a flat rate of $8.00 plus $0.50 for each mile driven. It's the number of miles an individual would need to drive such that the charges of both taxicab companies are the same.
What is 13 miles ?