Let's meet the order of numbers? The number system we usually use is the decimal system. With him, the numbers are grouped from 10 to 10 and thus 10 algorithms are grouped (0, 1, 2, 3, 4, 5, 6, 7, 8, 9). Algorisms are the mathematical symbols we use to represent numbers. By grouping the numbers from 10 to 10, the need to classify them arose.
• 10 units = 1 ten
• 10 tens = 1 hundred
• 10 hundreds = 1 unit of thousand
Read too: Stopped odd?
So, for each group of 1, 10, and 100, we have an order, and that order is read from right to left. See the example number 423 below:
Note that this number has three algorithms and each of them is positioned in an order: 4 (hundred), 2 (ten), 3 (one). In order to understand the order of the numbers, look at the table below:
Note that the numbers 4.188.43 and 1149 they are on the table in the order of each one. When the numbers are separated, it becomes clearer to identify in which order each of them is found. O golden material is a feature that helps us understand the order of numbers visually. Watch:
- The number 1 represents a unit. If we have 3 cubes, we will have 3 units.
- The number 10, indicated by the bar below, represents the ten and contains 10 units.
- The sign below represents the number 100 and indicates that we have a hundred.
- The cube below represents the number 1000 and indicates that we have a unit of thousand.
See too: What is the value of a digit?
Activity
1) Decompose the numbers below following the model.
2,533 = 2 - thousand, 5 - hundred, 3 - ten, 3 - unit
a) 2874
b) 225
c) 89
d) 7213
Reply
a) 2- thousand, 8-hundred, 7-ten, 4- unit.
b) 2-hundred, 2-ten, 5-unit.
c) 8-ten, 9-unit.
d) 7-thousand, 2-hundred, 1-ten, 3-unit
Challenge
Are we going to practice knowing the order of numbers? Print out the table below and rank some numbers so you can check the order of numbers whenever you are in doubt.
To download in PDF and print, Click here.
