Math MAP Trivia (7th Grade Review for MAP Test)

Math MAP Trivia

(Review 7th Gr MAP)

By JULIE MECEY

Ratios and Proportional Reasoning

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ratio ....... a FraCtioN

​When asked to write a ratio, remember to write a fraction (a comparison of two numbers)

​

RATES - are ratios with units

UNIT RATES - ratios with 1 in the denominator​

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Percents

Out of 100

Write percents as fractions out of 100

​

Write ratios as part/whole

​

You can write two equivalent ratios involving percents and solve the proportion​

​

Proportions

Two equivalent (=) ratios​

Solve proportions by cross multiplication.

• cross products are equal

  • solve the equation

    ​

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Multiple Choice

A marathon runner ran 26 miles in 312 minutes. What is the unit rate in minutes per mile?

• 0.0833 mile/min

• 12 min/mile

• 26 miles/312 min

• 312 min/26 miles

Multiple Choice

There are 14 boys and 12 girls in a class. What is the ratio of girls to boys in simplified form?

• 14/12

• 12/14

• 7/6

• 6/7

Multiple Choice

There are 14 boys and 12 girls in a class. What percent of the class is girls?

• 46.15%

• 85.71%

• 53.8%

• 1.17%

Multiple Choice

A $24.00 shirt is on sale for 15% off. How much do you save when you buy the shirt?

• $360

• $2.40

• $20.4

• $3.60

Multiple Choice

Mrs. Mecey can grade 42 papers in 70 minutes. At that rate, how long will it take her to grade 63 papers

• 105 minutes

• 60 minutes

• 84 min

• 140 minutes

Order of Operations

​PEMDAS

• Parenthesis (anything grouped together)

• Exponents

• Multiply & Divide (from left to right)

• Add & Subtract (from left to right)​

Operations involving Fractions

​Don't give up when you see a fraction

• A fraction bar just means division (top/bottom)

• ​When adding/subtracting - Find a common denominator

• When Multiplying - multiply straight across

• Dividing - KCF (keep change flip)

• SIMPLIFY always​

• Don't forget PIZZA MATH​

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Multiple Choice

$$\frac{1}{2}\cdot5$$  

• $$5\frac{1}{2}$$  

• $$2\frac{1}{2}$$  

• $$\frac{2}{5}$$  

• 5

Multiple Choice

$$\frac{3}{4}\div3$$  

• $$\frac{1}{12}$$  

• $$\frac{1}{4}$$  

• $$\frac{4}{9}$$  

• $$2\frac{1}{4}$$  

Multiple Choice

$$4\ -\ \frac{2}{3}\cdot9$$  

• 2

• -2

• 1

• -1

Algebraic Expressions

​Always simplify expressions

• Simplify by distributing

• Simplify by combining like terms

• You don't solve for the variable unless there is an = sign, then you do the inverse operations to solve​

Multiple Choice

Simplify: 4x - 9 -8x + 7

• -5x -1x

• -6x

• 12x -2

• -4x -2

Multiple Choice

Simplify:

-5(3x - 8)

• -15x + 40

• 15x - 40

• -15x - 40

• -15x - 8

Multiple Choice

How many terms are in this expression?

4x - 9 + 4y -5z

• 1

• 2

• 3

• 4

Multiple Choice

What is the coefficient?

-2x - 7

• 2

• 7

• -2

• -7

Solving Equations

​Isolate the variable (get the variable alone)

• Start on the side with the variable

• Get rid of the number not STUCK on the variable (opp order of op)

• Get rid of the number on the variable by making it 1x

​You can check your answer to make sure it is correct

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Multiple Choice

6x + 5 = -13

• 4/3

• 3

• -3

• -4/3

Multiple Choice

2x - 6 = -12

• 1

• -1

• -3

• 3

Multiple Choice

$$\frac{2}{3}x\ +\ 7\ =\ -11$$  

• -27

• 6

• 27

• -6

Multiple Choice

$$\frac{x}{5}-2\ =\ -4$$  

• -30

• 10

• -10

• 30

Solving Inequalities

​Solve by doing the inverse operation (just like solving an equation)

• ​The only difference between equations and inequalities is FLIPPING the symbol when you divide or multiply by a negative number

• Graph the solution

  • Open circle < >

  • Closed circle < >​

Multiple Choice

-5 > 2x - 3

• x > 1

• x < 1

• x > -1

• x < -1

Multiple Choice

-2x - 7 > -15

• x > -11

• x > 11

• x < 4

• x > 4

Find the area of each face (surface)

Add all of the areas together for surface area

SA cylinder = ​

Lateral Surface Area - the area of the faces excluding the bases​

​Surface Area

Prisms and Cylinders V = Bh

Pyramids and Cones V = Bh/3

​

Volume

Geometry

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Multiple Choice

Find the surface area.

• 129

• 189

• 3920

• 329

Multiple Choice

Find the volume

• 1000 in³

• 2000 in³

• 78,539.75 in³

• 6,283.18 in³

Multiple Choice

Find the volume of the pyramid

• 1800 cm³

• 900 cm³

• 600 cm³

• 60 cm³