Subtraction Tables
We approached the new subtraction tables in two different ways. The first was to make them look a lot like the division tables we created a few months back. These come in a variety of options including, color, grey, and one version that includes 13 pages where one difference is highlighted on each page. All of these options are available in facts from 0 to 11 and facts from 1 to 12.
The second approach was to make the subtraction facts into a grid. This is something we couldn't do with division tables because of the variety and number of dividends possible. With subtraction though, it was fairly easy to accomplish because there is a limited range of minuends. Because these are meant for younger students who are learning their subtraction facts, we "grayed" out the negative numbers. These tables come in filled and blank versions.
Five Minute Subtraction Frenzy Charts
You might be familiar with our addition and multiplication five minute frenzies. Well, we finally made some for subtraction. These are wonderful tools for practicing subtraction facts, but they should not be used with students who don't know their subtraction facts yet. For students who are still learning their facts, have them only fill in the rows for facts they do know. For students who know all of their facts, one activity you can try is to see if they can improve their time by spending a few minutes on one each day.
Multi-Digit Subtraction
The multi-digit subtraction section already existed, but we re-made the worksheets and added some more. The most notable improvement is that there are now "All" links for these worksheets. Some teachers and parents like the "All" link especially if they are planning on working on the same skill for a number of days and will need a number of worksheets to support the learning strategy they use. For those of you who still have an attachment to the "Old" versions of these worksheets, they are included as "Old" links.
All of the new multi-digit subtraction worksheets, of course do not have an "Old" link, so you can see we've added quite a bit on the page. There are now options for five-digit numbers, SI formats (Canada and other countries that use Metric number formatting), and Euro formats (e.g. Germany) where the thousands separator is a point rather than a comma.
Subtracting Across Zeros
Also a new section, the Subtracting Across Zeros a.k.a. Finding Complements section was added this week with a number of options. There are two categories... one where the zeros are part of a power of ten only (e.g. 10, 100, 1000), and one where the zeros are part of a multiple of a power of ten (e.g. 30, 800, 2000). We would recommend looking into some strategies other than "borrowing" to teach this skill as it would be useful to be able to complete subtraction questions mentally. In this case, it is quite easy with a little practice. One subtraction strategy that we've promoted before is "counting up". Counting up means that you start with the subtrahend (the number being subtracted) and count up to the minuend (the first number). For example, 1000 - 365 would work something like this: count up 5 to 370, count up 30 to 400 and count up 600 to 1000. The total amount counted up was 5 + 30 + 600 = 635 which is the difference (our answer). Now isn't that a little easier than crossing off zeros and borrowing?
These worksheets are also called Finding Complements because that is essentially what you do with them, except with the multiples of powers of ten, you must additionally "count up" the largest place value in the minuend. Finding complements has a number of applications including solving more difficult subtraction questions.
We hope that you find the new and revised subtraction worksheets useful. Thank you for choosing Math-Drills.com and please let us know if you have any comments or have an idea for a new math worksheet to add to the website. We appreciate very much when you share the website address or our worksheets with others, so thank you to all those who do that! If you are able to help promote our website by adding us to Facebook, Google Plus, Twitter, or Pinterest, we have placed easy to use links on our new Social Pages section.
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