Name: Add Sub K-1 Hack 1.6.1 + Redeem Codes
Rating: 3 (1 reviews)

Screenshots

Description

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.

Version history

1.6.1

2018-10-27

• 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

2018-03-19

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

2016-09-21

Fixed a screen display problem seen when using the app under iOS 10.

1.5.1

2015-04-27

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

2014-07-24

• 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

2012-12-20

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

2012-10-04

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

2011-12-08