Kincaid Pre-Algebra Semester 1 Review

Decimals

100

Add 1.25 + 2.56

3.81

200

Subtract 3.034 - 1.1

1.934

300

Multiply. 5.12 x 0.4

2.048

400

Divide. 13.3 / 5

2.66

500

1.13 + -3.34

-2.21

Fractions

100

Write 5 1/2 as an improper fraction

11/2

200

Write 44/10 as a mixed number. Simplify if possible.

4  2/5

300

What is 1/3  x  2/5

2/15

400

What is 2/7 + 3/14? Simplify if possible.

1/2

500

Mrs. Kincaid has 130 students out of 300 total in the school. What fraction of students does Mrs. Kincaid have out of the school? Simplify if possible. 

13/30

Equations

100

Solve for x. 4x + 4 = 20

x = 4

200

Write an equations. The sum of a number and 5 equals 11

n + 5 = 11

300

Write an equation. The quotient of a 20 and a number is equal to 2.

20/n = 2

400

Solve 3(x - 5) = 12

x = 9

500

x + y     x = 4.4, y = 6.11

10.51

Rounding

100

Round 12 to the nearest ten. 

10

200

Round 56 to the nearest hundred. 

100

300

Round 5.463 to the nearest tenth. 

5.5

400

Round 3.9184 to the nearest hundredth.

3.92

500

Round $77.352 to the nearest cent (hundredth).

$77.35

Random Math

100

In 4/7, is the 4 the numerator or the denominator?

Numberator

200

Multiply using the distributive property.

4(x - 3)

4x - 12

300

Round each number to the nearest hundred, then add. 

303 + 499 + 101

900

400

Simplify using exponents. 4 x 4 x 5 x 5 x 5

4² x 5³

500

Is 31 a prime or composite number? 

Prime