Question | Answer |
---|---|

Fractions are | Part of One Whole |

If the answer is a ratio, how many numbers do I need? | 2 |

What kind of problem gives information about TWO things & then asks questions about the SAME TWO things? | Proportion |

a. What do I draw on my paper when I have an equivalent problem with missing information? | _______=_______ |

b. What do I put on the left line? | Put the INFORMATION YOU KNOW on the left line. |

c. How do I work/finish the problem? | Cross Multiply and Divide |

## Math Review_Rubio_Notes #7-11

Question | Answer |
---|---|

Percentage is a | Part of 100 |

Every fraction/decimal/percent can be written as | fraction/decimal/percent. |

What are the three parts of a percentage problem? | Part Base Rate |

Triangles | Part (piece of whole is) |

Formula | ?Base X Rate (whole /of) (percent sign) |

Percent of Increase/Decrease | Subtract and Divide by Original Shift = Interest |

Perimeter | Add around sides |

Area | L X W (square units) = 2 |

Volume | L X W X H (cubic units) = 3 |

Mean: Average | Add & Divide |

Median | Middle number. Order numbers first |

Mode | Number repeated most often |

## Math Review_Rubio_Notes #6

Question | Answer |
---|---|

Decimals are | A Part of One |

Every fraction/decimal/percent can be written as | A fraction/decimal/percent |

Change fraction to decimal by | Top Number Divided By Bottom Number |

Change decimal to fraction by | Read It Write It Reduce It |

1/4 = | .25 |

1/2 = | .5 |

3/4 = | .75 |

1/3 = | .333 |

2/3 = | .667 |

## Math Review_Rubio_Notes #All

Question | Answer |
---|---|

What kind of test is the GED test? | Reading and Thinking |

How many steps to every word problem? | Four |

Step a. Read | Through the whole problem |

Step b. Say | I can do this |

Step c. Focus On | Bottom Line Question |

Step d. Think About | The Words Of The Question |

Ask | What do the words mean? |

What operation do I use? | Add Subtract Multiply Divide |

Combine and | Add |

How many more, how many less, what is the difference eft or any comparing words then | Subtract |

How many are IN something | Divide |

A part OF something (1/2 of 2000, 90% of salary) | Multiply |

Per in QUESTION means | Divide (per or unit rate refers to one.) |

If I know something about ONE and want to know about MORE then | Multiply |

If I know something about MORE and want to know about ONE, then | Divide |

Fractions | Part of One |

If the answer is a ratio, how many numbers do I need? | 2 |

What kind of problem is it when the problem tells me something about two things and then asks me something about the SAME two things? | Proportion |

What do I draw on my paper when I know I have one of these problems? | _______=_______ |

What do I put on the left line? | What I Know |

How do I work the problem? | Cross Multiply and Divide |

Decimals | Part of One |

Every fraction/decimal/percent can be written as | A fraction decimal percent |

Change a fraction to a decimal by | Top Number Divided By Bottom Number |

Change decimal to fraction by | Read It Write It Reduce It |

1/4 = | .25 |

1/2 = | .5 |

3/4 = | .75 |

1/3 = | .333 |

2/3 = | .667 |

Percentage | Part of 100 |

Every fraction/decimal/percent can be written as | fraction/decimal/percent. |

What are the three parts of a percentage problem? | Part Base Rate |

Triangles Part (piece of whole is) | ? Base X Rate (whole /of) (percent sign) |

Percent of Increase/Decrease | Subtract and Divide by Original Shift = |

Interest | P X T (years or months/12 x R shift = |

Perimeter | Add around sides |

Area | L X W (square units) = 2 |

Volume | L X W X H (cubic units) = 3 |

Mean | Average; Add & Divide |

Median | Middle number; Order numbers first |

Mode | Number repeated the most |

## Math Review_Rubio_Notes #1-4 Thinking It Thru

Question | Answer |
---|---|

What kind of test is the GED? | Reading and Thinking |

The four steps to every word problem is to | Read, Say, Focus & Think |

Read | Through the whole problem |

Say | I can do this |

Focus On | Bottom Line Question |

Think About | The Words Of The Question |

Name two questions to ask about a math word problem. | Ask what operation do I use?
Ask what do the words mean? |

If words are Combine and then you | ADD |

Question: Asking MORE or LESS or what is the DIFFERENCE or LEFT (comparing words) then you | Subtract |

If asking how many are IN something then you | Divide |

A part OF something (1/2 of 2000, 90% of salary, etc.) then you | Multiply |

Per (per or unit rate refers to one) in question then you | Divide |

If you know something about ONE and want to know about MORE then you | Multiply |

If you know something about MORE and want to know about ONE then you | Divide |

Sum or Total | Addition Answer |

Difference | Subtraction Answer |

Product | Multiplication Answer |

Quotient | Division Answer |

## 7th Math

Question | Answer |
---|---|

outcome | one possible result of a probability event |

simple events | one outcome or a collection of outcomes |

probability | The chance that some event will happen. It is the ratio of the number of ways a certain event can occur to the number of possible outcomes. |

complementary events | The events of one outcome hapening and that outcome not happening are complementary events. The sum of the probabilities of complementary events is 1. |

sample space | the set of all possible outcomes of a probability experiment |

compound (composite) event | an event consisting or two or more simple events |

independent events | two or more events in which the outcome of one event does not affect the outcome of the other event(s) |

fair game | a game in which players of equal skill have an equal chance of winning |

dependent events | the outcome of one event affects the outcome of the other event |

## Operations with integers

Question | Answer |
---|---|

-9*-9 | 81 |

-7*7 | -49 |

8*-12 | -96 |

-8*-8 | 64 |

6*-9 | -54 |

-10*-10*-10 | -1000 |

7*-11 | -77 |

-6/-6 | 1 |

-12/4 | -3 |

-16/-4 | 4 |

-1/-2 | 0.5 |

100/-10 | -10 |

-27/-3 | 9 |

## ur mom

Question | Answer |
---|---|

16 times 16 | 256 |

17 times 17 | 289 |

18 times 18 | 324 |

19 times 19 | 361 |

## Math Flashcards1

Term | Definition |
---|---|

Base | When a number is written in exponential form. EX 5 is the base in 5 to the third power. |

Composite Number | A number that is great than one with more than two factors. EX 48 is composite |

Divisible | A number is divisible by a second whole number. EX 48 is divisible by 8 |

Exponent | Tells how many times a number is used as a factor. EX 3rd power |

Factor | A whole number that divides into the remainder of 0. EX 5 is a factor of 25 |

Formula | A tool that shows the relationship between two or more quantities. EX 6= 2 x R |

Greatest Common Factor | The largest number that is a factor between two different numbers. EX 20's GCF is 5 x 4 |

Least Common Denominator | The smallest number between two denominators. 2/3 and 4/2's LCD is 6 |

Least Common Multiple | The smallest number that can be a multiple of two numbers. EX 2 and 3's LCM is 6 |

Multiplicative Inverse | The reciprocal of a number. EX 1/2 reciprocal is 2/1 |

Power | A number that can be expressed through its base and an exponent. EX 1 to the 1st power is one |

Prime Factorization | When you break down a composite number. EX 6=2 x 2 |

Prime Number | A number that can only be multiplied by itself and 1 |

Rational Number | A number written off the division of two integers where the denominator isn't 0. EX 9/10 |

Reciprocals | Two fractions that have products of one 3/5 and 5/3 |

Relatively Prime | A fraction is relatively prime when a and b only have I as a common multiple. EX 1/4 |

Repeating Decimal | A decimal that repeats and does not end. EX. .3333333 |

Scientific Notion | The first factor is greater than or equal to 1 and less than 10, and the second factor is the power of 10. EX 3.7 x 7 to the 10th power |

Terminating Decimal | A decimal that ends. EX .6 |

## Chapter 2 Math Vocab 7th Grade Pre Algebra

Term | Definition |
---|---|

Base | When a number is written in exponential form, the number that is used as a factor. (Example: 5^4 (5 is the base) which equals 5x5x5x5.) |

Composite Number | A whole number greater than 1 with more than two factors. (Example: 24 is a composite number that has 1,2,3,4,6,8,12,and 24 as factors.) |

Divisible | A number is this term by a second whole number if the first number can be divided by the second number with a remainder of 0. (Example: 16 is divisible by 1,2,4,8,and 16. |

Exponent | Tells how many times a number, or base, is used as a factor. (Example: 3^4 (4 is the exponent) equals 3x3x3x3. |

Factor | A whole number that divides another whole number with a remainder of 0. (Example: 1,2,3,46,12,18,and 36 are factors of 36.) |

Formula | A rule that shows the relationship between two or more quantities. (Example: The formula p=2L+2W gives the perimeter of a rectangle in terms of its length and width. |

Greatest Common Factor (GCF) | This term of two or more numbers is the greatest number that is a factor of all of the numbers. (Example: The GCF of 12 and 30 is 6.) |

Least Common Denominator (LCD) | This term of two or more fractions is the least common multiple of their denominators. (Example: The LCD of fractions 3/8 and 7/10 is 40. |

Least Common Multiple (LCM) | This term of two numbers is the smallest number that is a multiple of both numbers. (Example: The LCM of 15 and 6 is 30.) |

Multiplicative Inverse | The reciprocal of a number is called this term. (Example: The multiplicative inverse of 4/9 is 9/4. |

Power | A number that can be expressed using a base and exponent. (Example: 3^4,5^2, and 2^10 are powers. |

Prime Factorization | Writing a composite number as the product of its prime factors is the prime factorization of the number. (Example: The prime factorization of 12 is 2x2x3, or 2^2×3.) |

Prime Number | A whole number with exactly two factors, 1 and itself. (Example: 13 is a prime number because its only factors are 1 and 13.) |

Rational Number | Any number written as a quotient of two integers where the denominator is not 0. (Example: 1/3,-5,6.4,0.666…,-2 4/5,0, and 7/3 are rational numbers. |

Reciprocals | Two numbers are this term if their product is 1. (Example: The numbers 4/9 and 9/4 are reciprocals. |

Relatively Prime | A fraction a/b is in simplest form when a and b are relatively prime, which means they only have 1 as a common factor. (Example: 9/10, 1/4, and 2/3 are examples of this term.) |

Repeating Decimal | A decimal that repeats the same digits without end. The repeating block can contain one digit or more than one digit. (Example: 0.888…=0.8 with the repeating sign over 8. |

Scientific Notation | A number is in scientific notation if the first factor is greater than or equal to 1 and less than 10, and the second factor is a power of 10. (Example: 37,000,000 is written as 3.7×10^7 in this term. |

Terminating Decimal | A decimal that stops. (Example: Both 0.6 and 0.7265 are this term.) |