# TABE Math Computations Practice Test 2

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#### 20.159 + 0.52 = ?

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The answer is 20.679. Make sure to line up the decimal points before adding.

#### 5^3 = ?

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Answer is 5 x 5 x 5 = 125, so none of the shown answers is correct

#### 7/10 + 4/10 = ?

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When adding fractions that have the same denominator (the number on the bottom), you simply add the numerators together and keep the denominator the same. So 7/10 + 4/10 = (7+4)/10 = 11/10 which is the same as 1 1/10

#### 15% of 40 = ?

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15% is equivalent to 15/100 or 0.15. You find 15% of 40 by multiplying 40 x .15 = 6

#### Solve for y. -2y = 8

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Divide both sides of the equation by -2 to get the y variable by itself, this will yield the equation y = -4.

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#### 7y + y = ?

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When adding or subtracting equations with variables, you keep the variable as a unit. Think of the variable y as "apples", then the equation becomes 7 apples + 1 apple = 8 apples (or 8y)

#### 25% off a shirt with a \$500 price tag. The shirt is further discounted by 15% after a month. Which of the subsequent expressions can be used to calculate the shirt's selling price?

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Multiply the amount by (100% - rate of discount) to determine the discount.
Thus, the first discount we get is as follows: (500)(100% – 25%) = (500)(0.75)
For the following 15% discount: (500)(0.75) (0.85)

#### Which of the following points is on the equation 3x+5y=7 line?

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Plug in each pair of numbers in the equation: 3𝑥+5𝑦=7
(–2,2):3(–2)+5(2)=4
(2,2):3(2)+5(2)=16
(2,1):3(2)+5(1)=11
(–1,2):3(–1)+5(2)=7
Choice D is correct.

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8𝑎𝑏−5𝑎𝑏=3𝑎𝑏

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8/100×𝑥= 64
8𝑥/100= 64,
𝑥=6400/8= 800

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