90 Second Solutions

How do I use what I have to find a bigger amount?

How do I work out problems with a lot of steps?

How do I subtract more than two numbers at a time?

How do I subtract big numbers?

How do I "borrow" when the number has a lot of 0's in it?

How do I use tape diagrams to figure out a problem?

How do I show set of numbers?

How do I divide a big number by an little number?

How do I use information that is given to find new information?

How do I divide in a word problem?

How can I rearrange an array in different ways?

How do I show how to add 10 more?

When part of an array is missing, how do you find what's missing?

How do I divide up an amount to answer questions?

Why can I move the decimals when I divide and what do I do with them after I'm done?

How do I divide using a number line?

How do I multiply 2 digit numbers?

How do I do a word problem using multiplication and addition?

How do I do a word problem with addition and multiplication?

How do I do division word problems?

How do I show division?

How do I show multiplication?

How do I do a multi-step word problem with multiplication and subtraction?

Ever wonder what tools teachers use to help teach fractions? Here is a small sample. 

Why do we carry the one when adding? 

Want to understand place value better?

Why do we borrow when we subtract?

What do I do first? This shows how to use PEMDAS to solve a problem.

What does it mean to add positive and negative numbers?

How do I use a number line to add positive and negative numbers?

This shows you how to subtract positives and negatives.

This show how to use a numberline to subtract positive and negative numbers.

How do I divide a big number by an little number?

Where does the negative sign go on a fraction? 

What does division mean with fractions?

How do I divide up an amount to answer questions?

How do I show what dividing fractions looks like?

What does dividing fractions looks like?

How many factional parts are in a number of whole numbers?

How can I group boxes together to make multiplying easier?

Is there a different way to multiply mixed numbers? 

How are fractions divided?  What do common denominators have to do with dividing fractions?

What does division mean with fractions?

Where does the negative sign go on a fraction? 

How do I show what dividing fractions looks like?

What does dividing fractions looks like?

How many factional parts are in a number of whole numbers?

How can I group boxes together to make multiplying easier?

How do I compare numbers using place value to check if one is bigger than another one?

What happens to a number when it is multiplied by 10?

Rounding and place value

How do I calculate how many times more one number is than another?

What is the difference between multiplying and adding decimal numbers?  When do you move the decimal and when do you line them up?

Why do we count the deimal places when we multiply decimal numbers?

What is the connection between 10, place value, and decimals?

How do I convert grams to kilograms?

How are area and perimeter different?  How are they calculated?

How do I find perimeter?

How do I find the volume of a net?

What is the volume when all you have is the area of the base and told how tall it is?

How do you find the area between two things?

How do I find area?

This video will show how to find missing angles when two parallel lines are cut by a transversal.

Solving equations to find the measure of missing angles inside a triangle.

How do I find the volume of a net?

What is the Pythagorean Theorem and what do all the parts mean?

How do I find the missing leg of a right triangle?  How do I use the Pythagorean Theorem?

How do I read a line plot?  What does it tell me about the data?

How do I read a line plot to find a total?

How do I read bar graphs and frequency graphs?

How do you answer questions about graphs?

How do you graph points?

How do I graph points?

How do I find information from a graph?

When you are given the percent and the part, what's the whole?

This shows how you calculate a discounted price

When you are given the whole and the part, what's the percentage?

How do I calculate the tax on an item?

An explanation of unit ratios

This show how to see patterns in ratio table both across and up and down.

How is a ratio table set up and used?

How do I use tape diagrams to figure out a problem?

How do I use double number lines?

How is estimation used to see if there is enough of something?

How is estimation used to make a prediction?

How do I turns words into numbers?

Are there different ways I can estimate?

How do I compare numbers using place value to check if one is bigger than another one?

What are factors? What are multiples?  How are they different?

When part of an array is missing, how do you find what's missing?

What is the difference between an expression and an equation?

How do I write a remainder and what do they actually mean?

How do I convert grams to kilograms?

How to use a factor tree to find the prime factorization of a number.

What's the difference between a factor and a multiple?

In what order do numbers go on a number line?

What's the difference between least common multiple and greatest common factor?

What is the difference between an expression and an equation?

This video will demonstrate how to find the slope-intercept form of a linear equation.

This video demonstrates finding slope given two points on a line.

How do I graph a line when all I have is an equation?

How do I get a number for the slope of a line when I'm given a graph or two points?

How do I find the equation of a line in slope-intercept form when given the slope and a point?

How do I graph a line when I'm given the equation in slope-intercept form?