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Addition and subtraction with significant figures | Decimals | Pre-Algebra | Khan Academy
By Khan Academy
This video shows us the rules for adding and subtracting measurements to show our level of accuracy. Note that the rules for addition/subtraction with significant figures are VERY different than the rules for mulitplication/division. Think about which number is the most precise!
One-step addition and subtraction equations with fractions and decimals
By Khan Academy
Some quick examples to practice solving a variety of one step equations. All 4 operations (add, subtract, multiple, divide) are paired with variables.
One-step addition and subtraction equations with fractions and decimals
By Khan Academy
Learn how to solve one-step addition and subtraction equations that have fractions and decimals in them.
One-step addition and subtraction equations with fractions and decimals
By Khan Academy
Learn how to solve one-step addition and subtraction equations by adding or subtracting the same thing from both sides of the equation.
One-step addition and subtraction equations with fractions and decimals
By Khan Academy
Learn how to solve this equation: a + 5 = 54������������
Multi-step word problem with decimals and subtraction
By Khan Academy
First visualize this word problem then use subtraction and multiplication of decimals and fractions to get at the answer.
Addition - Adding Whole Numbers - MathHelp.com
By yourteachermathhelp
YouTube presents Addition - Adding Whole Numbers an educational video resource on math.
Multi-step word problem with decimals and subtraction
By Khan,Academy
First visualize this word problem then use subtraction and multiplication of decimals and fractions to get at the answer.