# Basis Math Concept for determining when to start coding

### If your child doesn't have the following concept, please wait until he/she has the concept.   When he/she who doesn't have basic math concept, they might lose the interest of Coding.

1. Check if he/she has "Variable Concept"
ex) num1=10, num2=20
sum=num1+num2 , product=num1*num2
What is sum? What is product?
2. Check if he/she has "Range Concept"
ex) num=10,11,12,13,14,15
what is range of the variable "num"?
3. Check if he/she has "Comparison Concept"
ex) num1>num2
which variable is bigger?
which variable is smaller?
4. Tell what is even numbers from 1 to 10
Tell what is odd numbers from 1 to 10
5. num=12
What is factors of the variable "num"?
6. num1=4, num2=10
What is GCF? What is LCM?
7. num1=4, num2=10
What is GCF? What is LCM?
8. What is square? What is cube?
9. num=5
Is the variable "num" prime? Why?
10. Tell prime numbers from 1to 10
11. How to calcuate average using variable "total"?
ex) english=90, math=95, history=85
What is total? What is average?
12. candy=200
Calculate 60% of the variable "candy"

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