Math

D157 Activity: iLearn Practice

Integer Operations

Multiple Choice

Simplify: $$-3+-4$$  

• $$-7$$  

• 1

• 7

• 6

Multiple Choice

Simplify: $$-13+23$$  

• $$-10$$  

• 36

• 10

• $$-36$$  

Fraction Operations

Multiple Choice

Simplify: $$\frac{3}{2}+2\frac{4}{5}$$  

• $$4\frac{3}{10}$$  

• $$5\frac{4}{5}$$  

• $$-\frac{7}{10}$$  

• $$3\frac{3}{10}$$  

Multiple Choice

Simplify: $$\left(-\frac{3}{4}\right)-\left(-2\frac{4}{5}\right)$$  

• $$1\frac{17}{20}$$  

• $$4\frac{1}{20}$$  

• $$4\frac{3}{10}$$  

• $$2\frac{1}{20}$$  

Multiple Choice

Simplify: $$-\frac{8}{5}\div\frac{-6}{5}$$  

• $$1\frac{23}{25}$$  

• $$\frac{1}{2}$$  

• $$\frac{4}{3}$$  

• $$-2\frac{4}{5}$$  

Decimal Operations

Multiple Choice

Simplify: $$4.1+1.6$$  

• 2.1

• 5.7

• 6.8

• 10.5

Multiple Choice

Simplify: $$4.1\div0.1$$  

• 3.7

• 41

• 1.9

• 0.41

Multiple Choice

Simplify: $$-2.7\times5.4$$  

• 3.3

• 2.7

• $$-12.263$$  

• $$-14.58$$  

Distributive Property

Multiple Choice

Distribute: $$2\left(-r+4\right)$$  

• $$25r+20$$  

• $$25r+23$$

• $$15r-15$$  

•   $$-2r+8$$  

Multiple Choice

Distribute: $$-3\left(4a-5\right)$$  

• $$-16a+18$$  

• $$-12a+18$$

• $$-6-9a$$  

•   $$-12a+15$$  

Factoring

Multiple Choice

Factor: $$32+16x$$  

• $$8\left(4+2x\right)$$  

• $$16\left(2+x\right)$$  

• $$2\left(16+8x\right)$$  

• $$32\left(1+4x\right)$$  

Multiple Choice

Factor: $$15+30x$$  

• $$15\left(1+2x\right)$$  

• $$15\left(1+3x\right)$$  

• $$3\left(5+10x\right)$$  

• $$5\left(3+6x\right)$$  

Order of Operations

Multiple Choice

Simplify: $$-12\div\left(-4--6\right)$$  

• $$0$$  

• $$-2$$  

• $$-7$$  

• $$-6$$  

Multiple Choice

Simplify: $$\left(\frac{4}{3}\times-\frac{11}{3}\right)\div-\frac{9}{4}$$  

• $$\frac{299}{324}$$  

• $$\frac{473}{81}$$  

• $$\frac{176}{81}$$  

• $$\frac{122}{81}$$  

Two-Step Equations

Multiple Choice

Solve: $$-5-b=-3$$  

• $$-8$$  

• 6

• 4

• $$-2$$  

Multiple Choice

Solve: $$-5n+3=28$$  

• $$-8$$  

• $$-2$$  

• $$-3$$  

• $$-5$$

Multiple Choice

Solve: $$-2-5n=-12$$  

• $$-5$$  

• $$-7$$  

• $$7$$  

• $$2$$

Multiple Choice

Solve: $$3p+2=-28$$  

• $$4$$  

• $$5$$  

• $$-10$$  

• $$10$$

Two-Step Inequalities

Multiple Choice

Solve: $$5-3a>-10$$  

• $$a>5$$  

• $$a>-2$$  

• $$a<5$$  

• $$a>0$$  

Multiple Choice

Solve: $$-4+\frac{v}{2}\ge-6$$  

• $$v\ge-14$$  

• $$v\ge-11$$  

• $$v\ge-16$$  

• $$v\ge-4$$  

Multiple Choice

Solve: $$-4b+5\le9$$  

• $$b\ge-1$$  

• $$b\ge-11$$  

• $$b\ge-22$$  

• $$b\ge-5$$  

Multiple Choice

Solve: $$3x+1<-8$$  

• $$x<-3$$  

• $$x>-9$$  

• $$x>-3$$  

• $$x<-9$$  

Ordering Numbers

Multiple Choice

Order the numbers from least to greatest:

$$\sqrt[]{5}$$ , 3, $$2\frac{1}{2}$$ , $$\sqrt[]{8}$$   

• $$\sqrt[]{5}$$ , $$2\frac{1}{2}$$  , $$\sqrt[]{8}$$   , 3

• $$2\frac{1}{2}$$ , 3, $$\sqrt[]{5}$$ , $$\sqrt[]{8}$$  

• $$2\frac{1}{2}$$ , $$\sqrt[]{5}$$ , $$\sqrt[]{8}$$   , 3

• $$2\frac{1}{2}$$ , $$\sqrt[]{5}$$ , 3, $$\sqrt[]{8}$$  

Multiple Choice

Order the numbers from least to greatest:

9.8, $$\pi$$ , $$\sqrt[]{49}$$  

• $$\pi$$ , $$\sqrt[]{49}$$ , 9.8

• $$\pi$$ , 9.8, $$\sqrt[]{49}$$

• 9.8, $$\pi$$ , $$\sqrt[]{49}$$

• $$\sqrt[]{49}$$ , 9.8, $$\pi$$  

Unit Rates

Multiple Choice

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound

• $5 per pound

• $35 per pound

• 0.125 pounds per dollar

Multiple Choice

Julie can type about 300 words in 5 minutes. At this rate, about how many words can she type in an hour (60 minutes=1 hour)?

• 3000 words in an hour

• 60 words in an hour

• 3600 words in an hour

• 5000 words in an hour

Percent Change

Multiple Choice

A sweater is $43. It is on sale for 20% off. What is the final price?

• $47

• $23

• $8.60

• $34.40

Multiple Choice

Find the percent change.

Original amount: 16

New amount: 11

• 5%

• 0.3%

• 31%

• 56%

Slope

Multiple Choice

Find the slope of the line.

• $$-\frac{1}{2}$$  

• $$\frac{1}{2}$$  

• 2

• $$-2$$  

Multiple Choice

Find the slope of the line.

• $$-\frac{4}{5}$$  

• $$\frac{4}{5}$$  

• 1

• $$-1$$  

Circles

Multiple Choice

Find the area AND the circumference. Leave in terms of $$\pi$$ .

Formulas: $$C=2\pi r$$  , $$C=\pi d$$  , $$A=\pi r^2$$  

• Area: $$121\pi\ mi^2$$  

  Circumference: $$22\pi\ mi$$  

• Area: $$12\pi\ mi^2$$  

  Circumference: $$22\pi\ mi$$  

• Area: $$121\pi\ mi^2$$  

  Circumference: $$11\pi\ mi$$  

• Area: $$11\pi\ mi^2$$  

  Circumference: $$121\pi\ mi$$  

Multiple Choice

Find the area AND the circumference. Leave in terms of $$\pi$$ .

Formulas: $$C=2\pi r$$  , $$C=\pi d$$  , $$A=\pi r^2$$  

• Area: $$36\pi\ ft^2$$  

  Circumference: $$12\pi\ ft$$  

• Area: $$36\pi\ ft^2$$  

  Circumference: $$6\pi\ ft$$  

• Area: $$12\pi\ ft^2$$  

  Circumference: $$12\pi\ ft$$  

• Area: $$12\pi\ ft^2$$  

  Circumference: $$36\pi\ ft$$  

Similar Triangles

Multiple Choice

Find the missing side length of the similar triangles.

• 10

• 40

• 20

• 30

Multiple Choice

Find the missing side length of the similar triangles.

• 8

• 18

• 24

• 96

Scale Factor

Multiple Choice

Find the scale factor from A to B for the similar figures.

• $$\frac{6}{5}$$

• $$\frac{5}{6}$$

• $$6$$

• $$5$$

Multiple Choice

Find the scale factor from B to A for the similar figures.

• $$\frac{1}{6}$$

• $$6$$

• $$5$$

• $$\frac{1}{5}$$

Statistics

Dropdown

Find the following information based on the box plot.

Minimum: ​

Select answer

Quartile 1: ​

Select answer

Median: ​

Select answer

Quartile 3: ​

Select answer

Maximum: ​

Select answer

Dropdown

Find the following information based on the data. Round to the nearest tenth, when necessary.

Mean: ​

Select answer

Median: ​

Select answer

Range: ​

Select answer

Probability

Multiple Choice

On a standard number cube, what is the theoretical probability of landing on a prime number?

• $$\frac{1}{2}$$

• $$\frac{5}{6}$$

• $$\frac{2}{3}$$

• $$\frac{1}{3}$$

Multiple Choice

What is the probability of landing on yellow?

• $$\frac{1}{4}$$

• $$\frac{3}{8}$$

• $$\frac{1}{8}$$

• $$\frac{1}{2}$$

Likelihood

Drag and Drop

Determine the likelihood of each event.

Impossible: ​

Placeholder

Equally Likely (as likely as not): ​

Placeholder

Likely: ​

Placeholder

Certain: ​

Placeholder

Drag these tiles and drop them in the correct blank above

0

Drag and Drop

Determine the likelihood of each event.

Impossible: ​ ​

Placeholder

Unlikely: ​ ​

Placeholder

Likely: ​ ​

Placeholder

Certain: ​ ​

Placeholder

Drag these tiles and drop them in the correct blank above

1