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Multiplying 4 digits by 1 digit with visual models
By Khan Academy
It's helpful sometimes to use a grid when multiplying multi-digit numbers. Here's an example using a 4 digit number times a 1 digit number.
Multiplying fractions by whole numbers 4.NF.B.4 4.NF.4
By S Hart
Multiplying Fractions by Whole numbers using repeated addition
[4.NF.4b-1.4] Multiplying Fractions - Common Core Standard
By Freckle education
Understand a multiple of a/b as a multiple of 1/b
[4.NF.4b-1.0] Multiplying Fractions - Common Core Standard
By Freckle education
Understand a multiple of a/b as a multiple of 1/b, and use this understanding to multiply a fraction by a whole number
[4.NF.4b-1.0] Multiplying Fractions - Common Core Standard - Word Problem
By Freckle education
Understand a multiple of a/b as a multiple of 1/b, and use this understanding to multiply a fraction by a whole number
Multiplying: 4 digits times 1 digit (with carrying) | Arithmetic | Khan Academy
By Khan Academy
This is getting fun! We're now multiplying FOUR digits times one digit. Remember to carry!
Multiplying mixed numbers
By Khan Academy
Learn how to multiply two mixed numbers. The example used in this video is 1 and 3/4 multiplied by 7 and 1/5.
Multiplying mixed numbers
By Khan Academy
Learn how to multiply two mixed numbers. The example used in this video is 1 and 3/4 multiplied by 7 and 1/5.
Multiplying mixed numbers
By Khan Academy
Learn how to multiply two mixed numbers. The example used in this video is 1 and 3/4 multiplied by 7 and 1/5.
Comparing with multiplication: basic exercises | Arithmetic | Khan Academy
By Khan Academy
If you think about it, multiplying is just another way of comparing numbers. How do we compare 4 and 20 using multiplication? Let's find out together.
DEPRECATED Multiplying and dividing rational expressions 4
By Khan Academy
Sal performs the following division and simplifies the result: (2p+6)/(p+5) ��������������������� (10)/(4p+20).
DEPRECATED Multiplying and dividing rational expressions 4
By Khan Academy
Sal performs the following multiplication and simplifies the result: (a^2-4)/(a^2-1) X (a+1)/(a+2).
Multiplying Mixed Numbers - YourTeacher.com - Pre Algebra Help
By yourteachermathhelp
For a complete lesson on multiplying mixed numbers go to http://www.yourteacher.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson students learn to multiply mixed numbers by first rewriting the mixed numbers as improper fractions then multiplying the improper fractions together then rewriting the resulting improper fraction as a mixed number if necessary. For example to multiply 1 8/15 x 1 1/4 first rewrite the mixed numbers as improper fractions to get 23/15 x 5/4. Next cross-cancel the 15 and 5 to 3 and 1 and we have 23/3 x 1/4. Next multiply across the numerators and denominators to get 23/12. Finally rewrite 23/12 as the mixed number 1 11/12.
GRE Math Test Prep | MathHelp.com
By MathHelp.com
This lesson covers the product rule. Students learn the product rule, which states that when multiplying two powers that have the same base, add the exponents. For example, x^4 times x^3 = x^7. To multiply 6s^3 times 3s^6, multiply the coefficients and add the exponents, to get 18s^9. If there is no exponent on the variable, it can be given an exponent of 1. For example, x can be thought of as x^1.
One-Step Division Equations - MathHelp.com - Math Help
By yourteachermathhelp
1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson students learn to solve one-step division equations. For example to solve x/4 = 2 multiply both sides of the equation by 4 to get x = 8. Next check the solution by substituting an 8 back into the original equation to get (8)/2 = 4 which is a true statement so the solution checks.
Multiplying Single Digit Numbers by Powers of 10
By StoneBridgeMath
This video demonstrates what it means to multiply a single digit number by a power of ten. For example 4 x 10 5 x 100 or 3 x 1000. This video can be used to build understanding of place value and would be a good precursor to expanded notation.