Addition and Subtraction ~ Complete the Equation Free at Mac App Store analyse

App power index: 100 (based on ranks around App Stores today)
Games Education Educational
Developer: Anne Gardner
Price: 0 free
Current version: 2.0, last update: 7 years ago
First release : 01 May 2014
App size: 6.2 Mb
4.6 ( 6256 ratings )
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Estimation application downloads and cost

> 2.2k
Monthly downloads
~ $ 900
Estimation App Cost


This app is designed to help students master the following Common Core Math Standards:

CCSS.MATH.CONTENT.1.OA.B.3 - Apply properties of operations as strategies to add and subtract.2 Examples: If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12. (Associative property of addition.)

CCSS.MATH.CONTENT.1.OA.D.8 - Determine the unknown whole number in an addition or subtraction equation relating three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8 + ? = 11, 5 = _ - 3, 6 + 6 = _.

CCSS.MATH.CONTENT.1.OA.C.6 - Add and subtract within 20, demonstrating fluency for addition and subtraction within 10.

First grade students need scaffolded experiences to develop problem these solving skills. This app includes 240 equation cards that are presented in 6 levels of increasing complexity.

First grade students need scaffolded experiences to develop problem solving skills. The full app includes 240 equation cards that are presented in 6 levels of increasing complexity- this version has just level 1.

This app is also excellent for helping second and third grade students develop problem solving skills and fluency with addition and subtraction facts.

The levels are:

Addition within 10
Subtraction within 10
Mixed +/- within 10
Addition within 20
Subtraction within 20
Mixed +/- within 20

We hope your students enjoy these games. If you have questions or feedback, we’d love to hear from you. We can be reached at [email protected].


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Available in countries
Country Price
Canada free
China free
France free
Germany free
Italy free
Netherlands free
Portugal free
Spain free
Poland free
UK free
India free
Japan free
Korea, Republic Of free
Poland free
Russia free
Turkey free
USA free
Korea, Republic Of free
Ukraine free
Available for devices
iPhone4, iPad2Wifi, iPad23G, iPhone4S, iPadThirdGen, iPadThirdGen4G, iPhone5, iPodTouchFifthGen, iPadFourthGen, iPadFourthGen4G, iPadMini, iPadMini4G, iPhone5c, iPhone5s, iPadAir, iPadAirCellular, iPadMiniRetina, iPadMiniRetinaCellular, iPhone6, iPhone6Plus, iPadAir2, iPadAir2Cellular, iPadMini3, iPadMini3Cellular, iPodTouchSixthGen, iPhone6s, iPhone6sPlus, iPadMini4, iPadMini4Cellular, iPadPro, iPadProCellular, iPadPro97, iPadPro97Cellular, iPhoneSE, iPhone7, iPhone7Plus, iPad611, iPad612, iPad71, iPad72, iPad73, iPad74, iPhone8, iPhone8Plus, iPhoneX,