You will learn how to write and read natural multi‑digit numbers and mark natural numbers on a number line, as well as read natural numbers marked on a number line.
Learning effect
You save and read natural multi‑digit numbers and select and read natural numbers marked on the number line.
Collect information on natural numbersNatural numbersnatural numbers and their interpretation on the number linenumber linenumber line, make notes in your notebook.
Answer the questions:
What numbers are called natural numbersNatural numbersnatural numbers? How many such numbers are there? Is there the largest or the smallest natural number?
What is the difference between a digit and a number? How can you define a digit? How many Arabic numeralsArabic numeralsArabic numerals are there?
Why is the system we use called the decimal numeral system?
How to interpret natural numbersNatural numbersnatural numbers on the number linenumber linenumber line?
Compare your findings with the information below:
In the decimal numeral system, digitsdigitsdigits are used to write numbers: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, called Arabic numeralsArabic numeralsArabic numerals.
Each natural number corresponds exactly to one point on the number linenumber linenumber line.
Task 1
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Write down with numbers and words all possible two‑digit numbers combinations that can be created from digitsdigitsdigits: 6, 5, 2.
Task 2
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Choose three any digitsdigitsdigits. Then create the largest and the smallest three‑digit number.
Task 3
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Write the numbers provided in words:
a) nine hundred and fifty‑two, b) thirty‑five thousand eight hundred, c) three thousand and seven, d) sixty‑four thousand and twelve, e) four hundred and eight.
Task 4
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Write in the notebook the numbers: 205, 698, 140, 47, 2356, 857, 86, 3030, 3568, 548. Next:
a) in green, mark the numbers in which the digit of thousands is less than 4, b) in red, mark the numbers in which the digit of hundreds is greater than 5, c) in blue, mark the numbers in which the digit of units is greater than the digit of tens.
Task 5
Zapisz słownie w języku angielskim liczby : 806524, 35321, 20202.
Zapisz słownie w języku angielskim liczby : 806524, 35321, 20202.
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Read the numbers encrypted in the table and write them in words.
Numbers to read
thusands
units
8
0
6
5
2
4
0
3
5
3
2
1
0
2
0
2
0
2
Task 6
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Open the applet. Mark the points with natural coordinates on the number linenumber linenumber line.
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Task 7
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Draw a number linenumber linenumber line for each sub‑point and apply appropriate units on each one. Then mark the numbers.
a) 0, 4, 6, 8, b) 5, 15, 20, 30, c) 150, 200, 300, 350.
Task 8
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Task for volunteers:
Write three‑digit numbers, in which the digit of hundreds is twice smaller than the digit of units, and the digit of units is two times smaller than the digit of tens.
Do the revision exercises.
Remember
In the positional numeral system, digitsdigitsdigits called Arabic numeralsArabic numeralsArabic numerals, are used to write numbers: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.