Scientific Notation, Converting Inches, and Games

A few new updates were made to Math-Drills.com over the past week or two that you might be interested in. Besides a number of design changes to improve the user experience and the performance of the website, we found time to make a few worksheets and update a couple of games. Here is a summary of what we did:

Scientific Notation Worksheets

We used to have one worksheet for converting between scientific notation and ordinary numbers, and we've turned that into nine different scientific notation worksheets. Since many people appreciate having the skills broken down, we thought that it would only be appropriate to do the same with the scientific notation worksheet. Now, we have worksheets that are exclusively for:

• converting from scientific notation to ordinary numbers
• converting from ordinary numbers to scientific notation
• converting both ways.

Each of those options also include options for small numbers only (i.e. negative exponents), large numbers only (i.e. positive exponents), and both.

Converting Inches to Centimeters

Essentially the same thing was done with the old inches to centimeters worksheets on the Measurement Page. We broke it up a bit, so you could take some baby steps with the skill if necessary, or jump right to the most difficult one if your student is able. Four options now exist with worksheets that include only whole number inches, worksheets with half inches as well, worksheets with quarter inches as well, and finally, worksheets with all of the above and eighth inches as well.

Quiet Update 

We quietly updated the Multiplication Facts to 49 worksheets. You might notice that LP (large print) links exist for all of the worksheets in that section now and the look of the worksheets has been updated. One nice feature about our facts to 49 worksheets is that we've controlled the repetition in clever ways. For example, the All Multiplication Facts to 49 (1 to 7) worksheet includes each of the 49 facts exactly once in each version. This is why we've only put 49 questions on the page. There are 64 questions on the (0 to 7) versions because there are 64 possible questions, and each question is found exactly once on each page.

Dots Math Game

It used to be that you had to open another window to play the Dots Math Game, but we've changed that, so you can now play it on the Dots Math Game page directly. We usually get a score of about 40 when we play. Has anyone ever got a score of 49 playing against the computer? Send us a screen capture if you do!

Sudoku Game

We did the same thing with the Sudoku Game and made it playable on the Sudoku page without having to open another window. If you've played this in the past and had trouble reading the extra-small instructions, well, we improved that as well. Enjoy playing Sudoku in night or day mode. We tried playing it on a smart phone and it performed beautifully. If you have a tablet or smart phone, you may enjoy trying it out on that screen too.

Flash Cards

It may come as no surprise to long time users that our flash cards are again broken and in need of repair. Hopefully, we'll get it right this time! We apologize for any inconvenience.

That's it for now. Have a fantastic week and don't let any math riddles get you down.