Addition up to 1000000
Subtraction up to 1000000
Multiplication for kids up to 1000
Division for kids up to 1000
Determining the expression made of three terms
Add and subtract three terms
Exercise 1 - Sum of 2 numbers
Addition using groups
Addition using multiplication
Roman numerals 1-50
Arabic numerals 1-50
Roman numerals 1-100
Arabic numerals 1-100
Roman numerals 1-1000
Arabic numerals 1-1000
Roman numerals 1-2000
Arabic numerals 1-2000
Exercise - Natural numbers between the interval
Exercise 1 - Equations with unknown numbers
Exercise 2 - Equations with unknown numbers
Exercise 3 - Equations with unknown numbers
Problem 1 - Unknown number
Problem 2 - Unknown number
Problem 3 - Unknown number
Problem 4 - Unknown number
Problem 5 - Unknown number
Problem 1 - Multiplication of natural numbers
Problem 2 - Multiplying natural numbers
Problem - The division of natural numbers
Problem. How many children received candies?
Problem. Grandmother's Court.
Problem. Comparison method.
Problem. Favorite book.
Problem. How many passengers can travel by train?
Problem. The teacher gives homework.
Problem. Car consumption.
Problem. How much do weigh?
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