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Order of Operations and Polynomial Algebra Bundle
19
ASO score
Text
39/100
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0/100
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0/100
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4.52
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2.9M
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7y 2m
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$19
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32d
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Title Length
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49
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17
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49
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26
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2 300
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6
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908MB
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Text ASO
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This bundle has all 3 iDevBooks polynomial algebra apps and the Order of Operations app. Save 62% compared to buying the apps separately.
Order of Operations
The user can evaluate random and custom expressions with exponentiation, division, multiplication, addition, and subtraction operations on integers and decimals. Operations can be grouped with nested parenthesis.
Expressions are evaluated one operation at a time just by tapping the operation. If the user taps an operation that can’t be solved next, the app tells why that was the wrong choice. There are no penalties for wrong answers.
After each step the solution for the current operation flies to the correct place. For example after solving 3 - 1 the answer 2 will fly to the correct place and the rest of the expression will move down. That way the user sees that only one part of the expression is solved in each step.
The user learns that the complexity of the initial expression does not matter because you only need to solve one multiplication, division, addition, or subtraction at each step.
The app uses a hierarchy of operators triangle - boss triangle - that shows the order of operations using a pyramid with exponent at the top, x and ÷ in the middle and + and - at the bottom. The rules are shown in a visual way instead of mnemonics.
Polynomial Long Division
With the Polynomial Long Division app you can practice dividing polynomials with a step-by-step method. And you can get additional help at each step.
Wired.com: "It’s fantastic for helping kids (and grown-ups) practice polynomial manipulation and division. I can’t recommend Esa’s math apps enough."
Polynomial Multiplication
The app saves your most recent problems and allows you to play back previously solved problems. You can play back problems step by step or with an animation. You can stop the playback at any time and continue to solve the problem yourself.
Polynomial Addition and Subtraction
You can have whole number and fraction coefficients and you can control how hard random problems the app generates. And you have complete freedom to set your own problems with up to forth-degree polynomials.
Privacy
The apps have no ads or in-app purchases and they do not transmit any data during the operation of the app. The apps also do not contain any links to other apps or the web.
Videos
Dozens of videos of these and other apps can be found at idevbooks.com.}
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