https://padlet.com/rwittich1/8thgrademathreview en-us 2016-03-03 18:50:52 UTC 2023-03-28 04:56:00 UTC hello@padlet.com https://padlet-assets.storage.googleapis.com/portrait/sticky.jpg rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/98872166

When adding two numbers that are positive, keep the positive sign and add

When adding two negative numbers, keep the negative sign, and add

When adding a negative and a positive, keep the sign of the bigger number and find the difference

]]> 2016-03-03 18:53:04 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/98872166 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/98873072 When subtracting integers

1. If the numbers are both positive, keep the sign of the larger number and find the difference
2. If the numbers are both negative, change the 2nd negative to a positive, keep the sign of the larger number and find the difference.
3. If there are two negatives being subtracted, change the number being subtracted to a positive, keep the sign of the larger number and find the difference

]]> 2016-03-03 18:55:35 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/98873072 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/98874403

If both signs are positive, the product will be positive.

If both signs are negative, the product will be positive.

If one sign is negative and the other is positive, the product will be negative.

]]> 2016-03-03 18:59:32 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/98874403 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/98875251

When dividing two positive numbers, the quotient will be positive.

When dividing two negatives, the quotient will be positive

When dividing a negative and a positive the quotient will be negative.

]]> 2016-03-03 19:01:46 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/98875251 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/98876370

The base is the number that is being multiplied, the exponent is the number of times the base is being multiplied by. 

The exponent can be found a little above and to the right of the number.

The example below, 4 is the base and 5 is the exponent.

]]> 2016-03-03 19:04:35 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/98876370 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/98957399 When multiplying keep the base and add the exponent.

]]> 2016-03-04 04:20:24 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/98957399 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/98957671 When dividing numbers in exponential notation, keep the base and subtract the exponents.]]> 2016-03-04 04:25:01 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/98957671 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/98957911 When a number is in exponential form and it is raised to a power, you multiply the exponents.]]> 2016-03-04 04:28:09 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/98957911 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/98958159 When more than one number/variable is being raised to an exponent, you distribute the power.
If the number has no exponent, the exponent is 1]]> 2016-03-04 04:31:08 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/98958159 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/98958441 Any number raised to a 0 power is 1]]> 2016-03-04 04:34:51 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/98958441 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/98958571 When a number has a negative exponent, put the base in the denominator with the exponent making it positive.]]> 2016-03-04 04:36:28 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/98958571 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/98958730 A positive, finite decimal that is expressed as a product of a number times 10 to an exponent, where the number is equal or greater than 1 but less than 10 and the exponent is an integer.]]> 2016-03-04 04:38:31 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/98958730 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/98958936 A number written out in an expanded form.
Examples:
524
6702
.00245]]> 2016-03-04 04:41:07 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/98958936 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/98959059

Convert the number to standard form

Perform the operation

Convert the number back to Scientific Notation

]]> 2016-03-04 04:42:46 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/98959059 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/98959306

Group the coefficients together and the numbers with base 10 together.

Multiply the coefficients together and the numbers of base 10 together.

If necessary change to scientific notation if the answer is not already in scientific notation 

]]> 2016-03-04 04:46:05 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/98959306 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/98959700

Group the coefficients together and the numbers of base 10 together.

Divide the coefficients while you subtract the exponents of the numbers of base 10.

Adjust the answer to be in scientific notation if necessary.

]]> 2016-03-04 04:51:17 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/98959700 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/99361427 You can combine like terms if they have the same variable]]> 2016-03-07 13:30:20 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/99361427 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/99361847 You are able to move around terms that are connected by an operator.]]> 2016-03-07 13:31:46 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/99361847 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/99362662 Changing the grouping of an expression]]> 2016-03-07 13:34:29 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/99362662 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/99362893 When you multiply to multiple addends that are in parenthesis]]> 2016-03-07 13:35:21 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/99362893 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/99363708 Take the constant that is on the same side as the variable. Perform the opposite operation on both sides to get the solution.]]> 2016-03-07 13:37:44 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/99363708 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/99364824
Perform the opposite operation of the coefficient.]]> 2016-03-07 13:41:07 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/99364824 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/99365244 Perform the opposite operation(addition or subtraction) of the constant. Then perform the opposite operation(multiply or divide) of the coefficient.]]> 2016-03-07 13:42:27 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/99365244 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/99556398

Distribute(get rid of fractions)

Combine like terms on both sides of the equation

Add or Subtract on both sides

Multiply or Divide on both sides

]]> 2016-03-08 02:38:28 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/99556398 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/99556598

Distribute (get rid of fractions)

Combine Like Terms

Add or Subtract

Multiply or Divide

]]> 2016-03-08 02:41:05 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/99556598 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/99556813

A linear equation has one solution, if x can be equal to only one number.

A linear equation has infinitely many solutions  if two numbers equal each other or both sides of the equation are identical

A linear equation has no solution if there are two numbers that are equal to each other or, the coefficient is the same but constant is different.

]]> 2016-03-08 02:44:21 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/99556813 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/99557224 Look at slope from left to right

• If the solution is going up it is increasing and has a positive slope
• If the line is going down it is decreasing and has a negative slope
• A horizontal line has a slope of 0
• A vertical line has an undefined slope(This is also not a function).

]]> 2016-03-08 02:50:20 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/99557224 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/99557468 A set of ordered pairs
ex. (0,1),(2,3)]]> 2016-03-08 02:52:56 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/99557468 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/99557496 the x-value or first number in an ordered pair.
ex. (0,1), (2,3) 0 and 1 are the domain]]> 2016-03-08 02:53:25 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/99557496 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/99557546 The y-value or second number of an ordered pair.
ex. (0,1),(2,3) 1 and 3 are the range]]> 2016-03-08 02:54:14 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/99557546 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/99557604 A relation in which ever x-value(domain) is paired with one and only one y-value.
When look at a graph a good way to see confirm if it is a function is the use of the vertical line test.]]> 2016-03-08 02:55:00 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/99557604 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/99557829 y=mx+b is known as slope intercept form.
y stands for the y value
m is the slope
x is the x-value
and b is the y-intercept]]> 2016-03-08 02:57:52 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/99557829 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/99558030

Solve one equation for one of the variables

Replace the variable with equation found

Solve the new equation for the remaining variable

Substitute thevalue into either original equation

check both variables in both equations

]]> 2016-03-08 02:59:54 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/99558030 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/99558214

Rewrite both lines in slope intercept form(y=mx+b)

Graph both lines, remember to label the x-axis,y-axis, the lines you graph.

Where the two lines intersect is where the solution will be

]]> 2016-03-08 03:02:03 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/99558214 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/99558370 Both equations should have the same coefficient but different sign.
If they do not you need to find which what number you can multiply by to give you similar variables
Combine both variables
Solve for the remaining variable
Substitute the solution to the variable into one of the original equations
Check both variables with one of the original equations.]]> 2016-03-08 03:04:30 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/99558370 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/99558630 A translation is known as a slide of a figure
Normally a translation rule is given by the change in the x-value, and a change in the y-value (x+#,y+#)

1. X-value-if the number is being added it is a slide to the right, if it is negative it is a slide to the left.
2. Y-Value-if the number is positive it is a slide up, if the number is negative it is a slide down.

]]> 2016-03-08 03:07:42 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/99558630 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/99558910 A Reflection is known as a flip of a image.
When a Reflection is done over the x-axis, the y-value is negated,
When an image is reflected over the y-axis, the x-value is negated.]]> 2016-03-08 03:10:17 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/99558910 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/99559159 A Rotation is known as a turn of a figure
A Counter Clockwise Rotation of 90 degrees follows the rule (x,y)->(-y,x) a clockwise rotation of 270 is the same as this.
A Rotation of 180 degrees follows the rule (x,y)->(-x,-y)
A counterclockwise rotation of 270 degrees follows the rule (x,y)->(y,-x) which is also the same as a clockwise rotation of 90 degrees]]> 2016-03-08 03:12:22 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/99559159 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/99559409 A Dilation is when an image gets smaller or larger
A scale factor greater than one means that the image will be enlarged.
A scale factor less than one will shrink.]]> 2016-03-08 03:15:10 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/99559409 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/100379418 2016-03-11 02:40:03 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/100379418 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/100379478 Angles are are next to each other
Adjacent angles are supplementary, both angles combined should equal 180. 

]]> 2016-03-11 02:40:53 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/100379478 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/100379690 the angles that occupy the same relative position at each intersection where a straight line crosses two others. If the two lines are parallel, the corresponding angles are equal.]]> 2016-03-11 02:43:14 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/100379690 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/100379736 When two lines are crossed by another line (which is called the Transversal), the pairs of angles
• on opposite sides of the transversal 
• but inside the two lines ]]> 2016-03-11 02:43:45 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/100379736 rwittich1 https://padlet.com/rwittich1/8thgrademathreview/wish/100379785 When two lines are crossed by another line (which is called the Transversal), the pairs of angles:
• on opposite sides of the transversal 
• but outside the two lines ]]> 2016-03-11 02:44:31 UTC https://padlet.com/rwittich1/8thgrademathreview/wish/100379785