Add Sub K-1

Add Sub K-1



Free

1.6.1for iPad
5.9
1 Ratings
Classroom Focused Software
Developer
36.2 MB
Size
Oct 27, 2018
Update Date
Education
Category
4+
Age Rating
Age Rating
4+
Apps in this category do not contain restricted content.
9+
Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.
12+
Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.
17+
You must be at least 17 years old to access this App.
Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.
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About Add Sub K-1

Part of the Math Practice Tools CFS Bundle

Practice Addition facts through 10 and Subtraction facts up to 20 minus 10.
• Select Sums to 5, 10, 15, or 20.
• OR adjust the addends separately for your problems in the a+b=c form. And make separate selections for the minuend and subtrahend when solving a-b=c problems.
• Display problems vertically or horizontally.

Practice Addition using three addends in the form of a+b+c=x+y or a+b+c=x.
• A subtraction option for a-b=x-y is also provided.

Options include showing objects when a problem is displayed, using counters to drag into place, using a 10-frame, or using marker board to help solve the problem.
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What's New in the Latest Version 1.6.1

Last updated on Oct 27, 2018
Old Versions
• Updated to support iOS12 - thank you for your patience.
• A few other minor tweaks.
• As time allows, I'd enjoy hearing how you're using the app in the classroom or at home.
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Version History
1.6.1
Oct 27, 2018
• Updated to support iOS12 - thank you for your patience.
• A few other minor tweaks.
• As time allows, I'd enjoy hearing how you're using the app in the classroom or at home.
1.6.0
Mar 19, 2018
Added an option to display problems in a horizontal orientation.
• A marker board and draggable chips are used a tools in the horizontal orientation.
• When working with a subtraction problem, a second tap on a chip dim it and place an "X" on it.
Added line size adjustment for marker board.
-- thanks to Joy H for ideas and suggestions to improve this app.
1.5.5
Sep 21, 2016
Fixed a screen display problem seen when using the app under iOS 10.
1.5.1
Apr 27, 2015
Fixed a problem when using the Red Square Counters in addition problems with addends greater than 10.

Thank you for the heads-up Lisa B and Julie D.
1.5.0
Jul 24, 2014
• Added an option to create problems with Sums to 5; Sums 5 to 10; Sums to 10, Sums 10 to 15; Sums 15 to 20; and Sums 1 to 20.
• Changed the Settings page to make the “Sums to...” the default choice. (Selecting individual addends, minuends, and subtrahends is still available.)

• Minimized the chance of having the same problem twice in a row.
1.4.4
Dec 20, 2012
Add Sub K-1 v1.4.4

• Now compatible with the newest, 4th Generation iPad. Works on all previous generations of the iPad and the new iPad mini.
• based on suggestions from folks at the NCTM Regional conference in Chicago Nov 2012, I included 10 Frames as one of the tools to use in problem solving.
1.4.0
Oct 4, 2012
Fixed a crash on startup when using iOS6.
Added an option to display problems with 3 addends.
Reduced the thickness of the chalk.
1.0.0
Dec 8, 2011

Add Sub K-1 FAQ

Click here to learn how to download Add Sub K-1 in restricted country or region.
Check the following list to see the minimum requirements of Add Sub K-1.
iPad
Requires iPadOS 10.0 or later.
Add Sub K-1 supports English

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