03:32duration 3 minutes 32 seconds
Solving a system of linear equations using…
Solving a system of linear equations using elimination with addition
This talks about why we need two equations to solve for two unknown values, and then demonstrates how to add two equations together to eliminate one varaible and solve for the other one, then find…
01:14duration 1 minute 14 seconds
Division of a decimal by a power of ten
Quick look at why and how we multiply decimals in this situation
02:14duration 2 minutes 14 seconds
Multiplication of a decimal by a power of ten
How counting zeros tells you how far to move the decimal point