NUMBER How-To Videos & Articles

Follow these number tutorials to learn all about number with WonderHowTo's collection of free how-to videos and articles, like Solve a sudoku number logic puzzle, Spoof your phone number, and Subtract numbers on a number line in pre-algebra.

You'll also find several great diet & health tutorials in the Diet & Health category.

How to solve a sudoku number logic puzzle

Solve a sudoku number logic puzzle

Sudoku is very simple to learn, it needs no calculations, and provides an amazing variety of logic situations. All that's required is brain ...more

A 5:00
Curated 1 year ago by rmansur | Comments 0
Views 443

How to spoof your phone number

Spoof your phone number

Have you ever found yourself calling up a company, only to be denied due to not calling from the number listed on your account? Thanks to a ...more

A 3:23
Curated 3 weeks ago by rmansur | Comments 0
Views 1,056

How to subtract numbers on a number line in pre-algebra

Subtract numbers on a number line in pre-algebra

Lawrence Perez, from Saddleback College, and his assistant Charlie ...more

A 6:22
Curated 1 year ago by rmansur | Comments 0
Views 614

How to calculate the modulus and argument of a complex number

Calculate the modulus and argument of a complex number

Need a little help with your math homework? No problem, the Math ...more

A 5:00
Curated 1 year ago by tenebrism | Comments 0
Views 3,451

How to find real and imaginary parts of a complex number

Find real and imaginary parts of a complex number

Need a little help with your math homework? No problem, the Math ...more

A 5:00
Curated 1 year ago by tenebrism | Comments 0
Views 2,061

How to find the complex conjugate of a complex number

Find the complex conjugate of a complex number

Need a little help with your math homework? No problem, the Math ...more

A 5:00
Curated 1 year ago by tenebrism | Comments 0
Views 1,923

How to find the polar form of a complex number

Find the polar form of a complex number

Need a little help with your math homework? No problem, the Math Centre offers students video tutorials that will provide as a reference ...more

A 5:00
Curated 1 year ago by tenebrism | Comments 0
Views 1,396

How to solve a sudoku beginner number puzzle

Solve a sudoku beginner number puzzle

Check out this beginner tutorial on how to solve a sudoku beginner number puzzle. Each sudoku has a unique solution that can be reached ...more

A 5:00
Curated 1 year ago by rmansur | Comments 0
Views 520

How to solve a sudoku intermediate number puzzle

Solve a sudoku intermediate number puzzle

Check out this beginner tutorial on how to solve a sudoku intermediate number puzzle. Each sudoku has a unique solution that can be ...more

A 5:00
Curated 1 year ago by rmansur | Comments 0
Views 484

How to write the square root of a negative complex number

Write the square root of a negative complex number

Need a little help with your math homework? No problem, the Math ...more

A 5:00
Curated 1 year ago by tenebrism | Comments 1
Views 1,650

How to use imaginary numbers and quadratic equations

Use imaginary numbers and quadratic equations

Need a little help with your math homework? No problem, the Math ...more

A 5:00
Curated 1 year ago by tenebrism | Comments 0
Views 1,998

How to add numbers on a number line in pre-algebra

Add numbers on a number line in pre-algebra

Lawrence Perez, from Saddleback College, and his assistant Charlie, give this pre-algebra lesson on adding numbers on a number line. This ...more

A- 5:00
Curated 1 year ago by rmansur | Comments 0
Views 924

How to learn about types of numbers

Learn about types of numbers

Learn about all the different types of numbers, like integers, irrational numbers, and real numbers, in great detail. Also includes how to ...more

A- 1:04:10
Curated 1 year ago by rmansur | Comments 0
Views 976

How to multiply large numbers

Multiply large numbers

This video demonstrates, without narration, a trick to multiplying large numbers. To do the trick, just draw a diagonal line for every unit ...more

A- 2:24
Curated 2 years ago by aramirez | Comments 1
Views 1,510

How to win the national lottery with number picking tips

Win the national lottery with number picking tips

Are there any ways to cheat chance and win the lottery without ...more

A- 1:39
Curated 1 year ago by Amie | Comments 2
Views 8,030

How to format numbers in cells in OpenOffice Calc

Format numbers in cells in OpenOffice Calc

When creating spreadsheets in OpenOffice Calc or any other spreadsheet software like Microsoft Excel, its likely that you have a range of ...more

B+ 2:00
Curated 1 year ago by Pigeonchicken | Comments 0
Views 426

How to find your model number on your oven or cooker

Find your model number on your oven or cooker

Check out this instructional home repair video to learn how to ...more

B 2:11
Curated 1 year ago by rmansur | Comments 0
Views 653

How to identify the model number on washing machine and dryer

Identify the model number on washing machine and dryer

Check out this instructional home repair video to learn how to ...more

B 1:07
Curated 1 year ago by rmansur | Comments 0
Views 757

How to bypass a master lock number 175

Bypass a master lock number 175

Check out this instructional con video that demonstrates how to bypass a master lock number 17 in this locking picking tutorial. This ...more

B 6:56
Curated 1 year ago by rmansur | Comments 1
Views 6,520

How to draw a cartoon Benjamin Franklin from the number 100

Draw a cartoon Benjamin Franklin from the number 100

Did you know that you can draw the person that's on the $100 bill from ...more

B 2:00
Curated 1 year ago by rmansur | Comments 0
Views 825

NUMBER (1324 How-Tos)

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Roly-Poly Bridge

Heatherwick Studio's London based rolling bridge is an engineering marvel. Lots of fun, and immensely satisfying to watch (via YouTube, assuming you can't see it in person). From Heatherwick Studio: ...

Master Nerd Births Perfect Copy Cat Bot

Can't help but smile at this goofy, endearing nerd "master" (Vitalijus Rodnovas) guiding his copy-cat protege robot (coined Waldo). The rig allows Waldo to mimic Rodnovas' body movements in ...

Building-Sized Überorgan Emits Heavenly Music and Farts

Tim Hawkinson is an artist who truly inspires. The Los Angeles based artist creates complex, whimsical sculptures with simple mechanics and basic materials. One of his most notable pieces is the ...

Super Slim and Sexy Xbox Mod

iPods are getting smaller and smaller each year. Why not Xbox? Bandit5317 has made an 1-inch thick Xbox. The ultimate Xbox mod: super slim. Pay attention, Microsoft. The "Xbox Micro" has a ...

Laser Coil Gun Shoots Bullets on Pure Electricity

Wow, kudos to Daniel Eindhoven for his incredible laser-lit coil gun. This bad boy shoots bullets on pure electricity and can shoot up to 85 km/hr. Daniel's specs: Fully semi-automatic, up to 14 shots ...

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