CBA Review

Percent means "by the hundred". To convert a percent to a decimal, divide the percent by 100.

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Percent to decimal

Multiple Choice

Write 1.45% as a decimal.

• 0.145

• 1.45

• 0.0145

• 0.00145

Open Ended

Which number is equivalent (equal) to.....

$$2\frac{1}{4}$$  

Multiple Choice

Which of the following equivalent to

$$\frac{11}{3}$$  

• $$11\frac{1}{3}$$  

• $$3\frac{1}{3}$$  

• $$\frac{3}{11}$$  

• $$3\frac{2}{3}$$  

Multiple Choice

What must you have to add and subtract fractions?

• Common numerators
• Different numerators
• Different denominators
• Common denominators

Multiple Choice

$$2\frac{2}{3}+4\frac{1}{8}$$  

• $$6\frac{3}{11}$$  

• $$6\frac{19}{24}$$  

• 7

• $$6\frac{3}{4}$$  

Multiple Choice

In preparation for a picnic, Samaj made a salad with 1/4 of a bag of iceberg lettuce and 5/8 of a bag of romaine lettuce. How many bags of lettuce did Samaj use in all?

• 3/8 bag

• 4/8 bag

• 6/8 bag

• 7/8 bag

Multiple Choice

​I can add and subtract positive and negative fractions.

$$\frac{1}{5}+\left(-\frac{1}{2}\right)=$$  

• $$\frac{1}{3}$$  

• $$-\frac{3}{10}$$  

• $$-\frac{1}{3}$$  

• $$\frac{2}{7}$$  

Multiple Choice

In preparation for a picnic, Samaj made a salad with 1/4 of a bag of iceberg lettuce and 5/8 of a bag of romaine lettuce. How many bags of lettuce did Samaj use in all?

What operation is this question asking you to do?

• Add

• Subtract

Multiple Choice

Which of the following is not a whole number?

• 0

• -2

• 5

• 112

Multiple Choice

Which of the following is not a integer?

• 8

• -24

• -3/4 

• 0

Assets, Liabilities, Net Worth

• Assets are things you own that own that have value: car, house, art, saving, etc.

• Liabilities are things you own money own: mortgage, credit card, student loans, etc.

• Net worth = assets - liabilities

• Remember if liabilities is great than assets then do liabilities - assets and your net worth will be negative.

_{Assets, Liabilities & Net Worth Word Problem}

Below is a list of Michael's assets and liabilities.

------------------------------

Savings=$250

Credit card=$432

Diamond ring= $2,400

Student loan=$1,200

------------------------------

What is John's net worth?

Step 1 Add the assets: 250 + 2400 = 2650

Step 2 Add the liabilities: 432 + 1200 = 1632

Step 3 Calculate net worth = Assets - liabilities ---- 2650 - 1632 = 1018 or $1,018

Multiple Choice

Below is a list of Mary's assets and liabilities.

------------------------------

Cash = $1,500

Car Loan = $1,000

Gold Neckless = $1,400

Credit Card = $1,200

------------------------------

What is Mary's net worth?

• $1,700

• $2,900

• $2,200

• $700

Multiple Choice

Bob's assets are $3,800.

His liabilities are a $2,500 student loan and $1,700 he owes on his credit card. What is his net worth.

• -$4,200

• -$400

• $4,200

• $400

Multiple Choice

$$-3+4$$  

• $$-7$$  

• $$7$$  

• $$-1$$  

• $$1$$  

Multiple Choice

$$-3+\left(-4\right)$$  

• $$-1$$  

• $$-7$$  

• $$1$$  

• $$7$$  

Multiple Choice

$$-3-4$$  

• $$7$$  

• $$-7$$  

• $$-1$$  

• $$1$$  

Multiple Choice

$$3-\left(-4\right)$$  

• $$7$$  

• $$-7$$  

• $$1$$  

• $$-1$$  

Match

Match each expression with the correct solution.

• $$-5+2$$  

• $$5+\left(-2\right)$$  

• $$-5-2$$   

• $$5-\left(-2\right)$$  

-3

3

-7

7

• -3

• 3

• -7

• 7

Multiple Choice

What integer represents this situation?

A submarine descends 200 feet below sea level.

• 200

• -200

• 20

• 400

Multiple Choice

When multiplying integers with the same signs, the answer will be...

• Positive

• Negative

• zero

• a fraction

Multiple Choice

When multiplying integers with the different signs, the answer will be...

• Positive
• Negative
• zero
• a fraction

Multiple Choice

How do you multiply two fractions?

• Multiply the numerator by the denominator.

• Multiply the denominator by the numerator.

• Multiply straight across.

• Add the numerators, then add the denominators.

Multiple Choice

How do you make a whole number a fraction?

• Put a one as the numerator.

• Put a one as the denominator.

• Place the number over itself.

• Just leave it as a whole number.

Multiple Choice

$$\frac{5}{9}\cdot\frac{1}{3}$$  

• $$\frac{6}{12}$$  

• $$\frac{1}{2}$$  

• $$\frac{6}{27}$$  

• $$\frac{5}{27}$$  

Multiple Choice

$$\frac{3}{9}\times\left(-2\right)$$  

• $$-\frac{6}{18}$$  

• $$\frac{3}{18}$$  

• $$\frac{9}{6}$$  

• $$-\frac{6}{9}$$  

Multiple Choice

Jackson’s mother buys 4 packs of hamburger meat. Each pack contains 4/6 of a pound of meat. How much total meat did she buy?

• Multiply

• Divide

Multiple Choice

Jackson’s mother buys 4 packs of hamburger meat. Each pack contains 4/6 of a pound of meat. How much total meat did she buy?

• $$4\times\frac{4}{6}$$
  

• $$4\div\frac{4}{6}$$
  

• $$\frac{4}{6\ }\ \div\ 4$$

Multiple Choice

Mr. Simpson feeds his dog ½ of a cup of dog food each day. How long will 4 cups of dog food last?

• Multiply

• Divide

Multiple Choice

Mr. Simpson feeds his dog ½ of a cup of dog food each day. How long will 4 cups of dog food last?

• $$\frac{1}{2}\ \times\ 4$$

• $$\frac{1}{2}\ \div\ 4$$

• $$4\ \div\ \frac{1}{2}$$

Multiple Choice

A chef has ½ of a pound of flour to divide equally into two containers. How much flour will be in each container?

• Multiply

• Divide

Multiple Choice

A chef has ½ of a pound of flour to divide equally into two containers. How much flour will be in each container?

• $$\frac{1}{2}\times2$$

• $$\frac{1}{2}\div2$$

• $$2\div\frac{1}{2}$$

Multiple Choice

$$\frac{6}{27}$$  

Simplify!

• $$\frac{2}{9}$$  

• $$\frac{1}{3}$$  

• $$\frac{3}{9}$$  

• Already in simplest form. 

• $$\frac{1}{7}$$  

Multiple Choice

$$\frac{2}{5}\div\frac{3}{4}$$  = 

rewrite! 

• $$\frac{2}{5}\times\frac{4}{3}$$  

• $$\frac{2}{5}\times\frac{3}{4}$$  

• $$\frac{5}{2}\times\frac{3}{4}$$  

Open Ended

$$6\div\frac{3}{4}$$  

Multiple Choice

-10+4

• -14

• 14

• -6

• 6

Multiple Choice

18 - (-4)

• -22

• 4

• 22

• -4

​Example:

How to Calculate Tax

Multiple Choice

How much will it cost to buy a shirt that cost $15.00 with a sales tax of 6%?

• $15.00

• $15.06

• $15.09

• $15.90

Multiple Choice

How much will it cost to buy a shirt that cost $22.50 with a sales tax of 6%?

• $23.08

• $23.85

• $24.85

• $24.06

Multiple Choice

1. If the income tax rate is 4%, determine the amount of income tax paid on an income of:

a. 40,000

• $160,000

• $1,600

• $16,000

• $160

Simple Interest

• I=Prt

• I=Interest, P=Principal, r=Rate as a decimal, T=Time in years

Multiple Choice

The simple interest formula is I=Prt.  The P represents the principal.  The principal is ___________________.  

• the amount of money borrowed or deposited

• the percent interest for his year

• the amount taxed

• the amount the bank owes you for being a customer at their bank

Multiple Choice

The rate is given as a percent (%).  Before using it in the simple interest formula, you must first convert it to a______.

• fraction

• decimal

• ratio

• dollar amount

Multiple Choice

Principal = $500
Interest rate =5%
Time = 5 years
What is the interest earned?

• 95

• 105

• 125

• 135