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Adding and subtracting three numbers within 1,000
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Math
English
Czech
1st grade
Adding and subtracting two numbers within 10
Comparing two numbers within 10
Adding and subtracting three numbers within 10
Adding and subtracting two numbers within 20
Comparing two numbers within 20
Adding and subtracting three numbers within 20
Adding and subtracting two numbers within 100
Comparing two numbers within 100
Adding and subtracting three numbers within 100
Basic number pyramid within 10
Basic number pyramid within 20
Number pyramid within 20
2nd grade
Adding and subtracting two numbers within 100
Adding and subtracting three numbers within 100
Number pyramid within 20
Number pyramid within 100
3rd grade
Adding and subtracting three numbers within 1,000
Number pyramid within 100
4th grade
Adding and subtracting three numbers within 1,000
Finding missing operators in statements
5th grade
Finding patterns in sequences
Finding missing operators in statements
Finding missing brackets in statements
Equations with one unknown
Triangle inequality
Number pyramid
'I think of a number' problem
Expression simplification
Word problem
Measurement conversion
Natural numbers and zero
Number line
Comparing numbers
Rounding numbers
Multiplication and division by heart
Multiplication natural numbers
Division by one-digit number
TODO: Slovesa
TODO: Přídavná jména
Fractions
Decimal numbers
Rounding decimal numbers
TODO: New node
Division by three-digit and many-digit number
Division by two-digit number
Adding and subtracting decimal numbers by heart
Adding and subtracting decimal numbers
Multiplication and division decimal numbers by 10, 100, 1,000...
Conversion of measuring units -- length, weight, volume
Multiplication decimal numbers by natural number
Adding and subtracting natural numbers
Multiplication decimal numbers by heart
Multiplication decimal numbers
Division decimal numbers by natural numbers
Division decimal numbers by heart
Division decimal numbers
Arithmetic mean
Adding and subtracting natural numbers by heart
Comparing decimal numbers
Positive and negative numbers, positive numbers, number line
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