Khan Academy Pre-Algebra Course Challenge | Full Step-by-Step Walkthrough

Full step-by-step walkthrough of the Khan Academy Pre-Algebra Course Challenge.

In this video, I solve mixed Pre-Algebra questions covering ratios and rates, multiples and factors, exponents, graph interpretation, slope, functions, scientific notation, simplifying expressions, inequalities, percentages, unit conversion, and word problems.

This video is useful if you are stuck on the Pre-Algebra Course Challenge and want clear worked solutions with reasoning shown step by step.

Questions solved in this video:
- How do you solve ratio reasoning problems?
- How do you find multiples of 11?
- How do you solve equations with exponents?
- How do you interpret graphs and rate of change?
- How do you complete an input-output table?
- How do you use square roots to solve equations?
- How do you use scientific notation in word problems?
- How do you simplify algebraic expressions?
- How do you find slope from a real-world graph?
- How do you graph inequalities on a number line?
- How do you find prime factorization?
- How do you identify whether a relation is a function?
- How do you evaluate expressions using order of operations?
- How do you combine like terms?
- How do you solve tape diagram equations?
- How do you rearrange equations?
- How do you calculate percentages from a shaded figure?
- How do you convert miles to kilometers?
- How do you solve rate of work problems?

Topics covered:
Pre-Algebra
ratio reasoning
rates and unit rates
multiples and factors
prime factorization
exponents
square roots
scientific notation
simplifying expressions
order of operations
combining like terms
linear relationships
graphs and slope
functions
input-output tables
ordered pairs
inequalities
percentages
unit conversion
word problems

Independent maths walkthrough by MT3 Academy. This video is not affiliated with or endorsed by Khan Academy.

Timestamps:
0:07 How do you solve the ratio reasoning problem with potato pancakes?
1:41 What are the multiples of 11?
2:01 How do you solve equations with exponents?
2:40 How do you interpret the graph of cooling stoves?
4:53 Complete the table for the rule y = x - 3.
5:23 How do you use square roots to solve equations?
5:57 How do you use scientific notation to approximate the flow of the Mississippi River?
6:36 How do you write the volume of the Gulf of Mexico in scientific notation?
6:52 How long would it take to fill the Gulf of Mexico?
7:26 How do you simplify expressions?
7:59 What is the rate of change/slope in Zane's volcano climb?
9:34 How do you write exponents in expanded form?
10:11 How do you graph inequalities on a number line?
10:30 How do you determine the relation between x and y on a graph?
11:16 What is the prime factorization of 75?
12:05 How do ordered pairs show a linear trend in the snow shoveling problem?
14:18 How do you determine whether size and price of rice packs represent a function?
16:36 How do you solve the ratio reasoning problem with blue and yellow cards?
17:27 How do you evaluate expressions using order of operations?
17:42 What are the cube roots?
18:08 What are the factors and multiples of 40?
19:09 How do you write an equation for the ice cream sandwiches problem?
19:55 How do you combine like terms in an expression?
20:51 How do you solve the ratio reasoning problem with iced tea bags?
22:33 What is the input-output pattern rule?
23:06 How do you solve the tape diagram equation?
23:20 How do you rearrange equations to make the independent variable the subject?
24:27 What numerical expression represents the total basketball hours?
25:06 Solve for f using the tape diagram.
25:18 What percentage of the figure is shaded?
26:01 How do you convert miles to kilometers?
28:10 How do you solve the rate of work problem with oil changes?

Видео Khan Academy Pre-Algebra Course Challenge | Full Step-by-Step Walkthrough канала MT3 Academy