Factors and Multiples vs Find Missing in Subtraction

Factors and Multiples app use cell division concept to help kids to learn prime factorization and how to find LCM and GCF. if you are interested in this app, you can watch the following video: https://www.youtube.com/watch?v=TjxcZ2ihk-I This app include 6 functions are as follows: 1. 100 Numbers chart : Prime numbers chart, Composite numbers chart, Multiples of 2, Multiples of 3, Multiples of 5, Multiples of 7, Multiples of 10, Multiples of 11. You can click the circle on the composite numbers chart to drill down to that number's prime factorization (factor tree and division method) 2. Pick the prime numbers game: Place the prime numbers by dragging and dropping to the circle area and avoid dragging and dropping the composite numbers. 3. Pick the composite numbers & Prime Factorization game Place the composite numbers by dragging and dropping to the circle area and avoid dragging and dropping the prime numbers. When the composite number in the circle, you can long press it 1 second , then you can see it’s prime factorization. 4. Learn how to find Least Common Multiple It provide 2 method to help kids to learn LCM,the methods are as follows: a. List all the Multiples of Both Numbers b. Division Ladder ( Division by primes ) 5. learn how to find Greatest Common Factor It provide 3 method to help kids to learn GCF,the methods are as follows: a. List all the factors of Both Numbers b. Prime Factorization c. Division Ladder ( Division by primes ) 6. Find the GCF and LCM using prime factorization This function provide step by step method to help kids learn how to find the GCF and LCM. Step 1. Long press 1 second on the first composite number to see it’s prime factorization ,until there are no composite number. Then you can click the next button to go to step 2. Step 2. Long press 1 second on the second composite number to see it’s prime factorization ,until there are no composite number. Then you can click the next button to go to step 2. Step 3. Place the factors in the correct location Step 4. Click the next button , you can see how to calculate LCM and GCF As a MOMs with Apps member,we follow the "Know What's inside" best practices for kids' apps. http://momswithapps.com/

In this program there is a subtraction problem at the top of the screen with the second number blank. The program voice says (for instance) "Seven minus what makes three? Click the correct answer." There are four numbers at the bottom of the screen, and the student should click the correct choice from among them. If the student clicks the correct number, the voice says "Yes, seven minus four equals three." Settings Vertical Subtraction If this is selected then the number statement at the top of the screen will be arranged vertically. Horizontal Subtraction If this is selected then the number statement at the top of the screen will be arranged horizontally. Prompt(Blink) This is checked by default. If the student fails to find the correct answer within ten seconds, the program guides him/her to the correct choice by making the correct choice blink. Select Random Numbers If this is selected, then the program will choose the numbers to be used in the problems. Congratulatory Animation If this is selected, then any and all of the numbers in this box will be used. To deselect this choice, click it again and selection will be ended. Test Here, the student can test him/herself. Report This displays results of the “Test”. The report (Holds Only 20 Records). Grade On/Off: If it is on, app will monitor correct and wrong responses by the student Correct Answer: When a student response to a question with correct answer Wrong Answer: When a student response to a question with wrong answer Number of Total Attempt: Number of times a student tried to answer questions in the app. Bar Chart: Represents the student's performance graphically. Detail Report: Test results including the grade. object identified, distracter and time taken to finish the test. Print: This will print the grade or data on the screen. Clear Data: This button erase all the data that was stored and free up the memory that data was occupying.