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Units, Tens, Hundreds. Learn How They Are Used

In today’s post, we are going to review Units, Tens, Hundreds, and see some examples of how they are used.


It is the smallest natural number. We are going to represent a unit with a cube:


To abbreviate the word unit, we will write U, for example:


Let’s look at a larger number of units:Units

There are a lot of units, right? Well, imagine how many there would be if we use an even bigger number of them!

Because of this, we use the tens which groups the units into groups of 10:

We are going to represent the number 18 using tens and units. You should know that we abbreviate ten with the letter T. As shown:Units

A ten is a greater value than a unit. A ten is composed of 10 units. Here are other examples:


But the same thing happens when we get to 100. For example, look at how the number 101 would be represented with tens and units:

Therefore, we use the hundred which equals 10 tens or, which is the same as 100 units:


We abbreviate hundred with the letter H. Here are two examples:

UnitsPositional Value

Now that we are familiar with the units, tens, and hundreds, we are going to look at the positional value of the numbers.

We are going to organize the numbers we have seen in a table, according to these instructions:

  • In the left-hand column, we write the complete number.
  • In the three next columns, where it says H, T and U, we have to figure out the number, writing only one digit in each cell, always the last number in the units.
  • In the last column, we express the number as the sum of its placeholder values.


Did our lesson help you to better understand units, tens, and hundreds?

If you want to continue practicing, we have a lot of these types of exercises on Smartick… And much more! Try it for free.

Learn More:

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  • Abdulrahaman busayo shakiraSep 23 2021, 1:55 AM

    I love this diving it help me to teach my pupils

  • GabrielSep 22 2021, 6:57 AM

    waoooo…this is simply simplified. ..I love it ,I use it to teach my son,it’s so helpful, bravo to smartick

  • Salmanu muhammadAug 23 2021, 1:36 PM


  • Jireh mariousJul 01 2021, 11:19 AM

    I want to learn more about maths

    • SodiqOct 19 2021, 6:57 AM

      So interested and ok

  • Waile Abdulkarim sOct 26 2020, 11:13 AM

    I love math

  • gloria johnmarkJun 29 2020, 9:42 AM

    So helpful.

  • MatomeJan 29 2020, 2:55 PM

    Simple, understandable and straight to the point. It greatly assisted my daughter to understand this section of elementary maths. Kudos to Smartick once again!!!

    • SmartickJan 30 2020, 4:19 AM

      Good to hear 🙂

  • Kachiro AugustineJan 24 2020, 8:17 AM

    Wow so interesting it helps me alot kudos smartick.

  • KasimDec 30 2019, 10:03 AM

    i love maths

  • [email protected]Oct 30 2019, 10:55 AM

    Units with examples

    • KasimDec 30 2019, 10:04 AM

      same i like maths

      • CeliaFeb 10 2020, 10:04 AM

        Wooow it help me I love it

  • madi joJun 24 2019, 10:16 AM

    I love math

    • SmartickJun 25 2019, 9:46 AM

      So do we at Smartick!

      • IGUBE HENRY NWALI.Mar 11 2021, 5:54 AM

        It’s incredibly important to know Maths…

  • DivineMar 03 2019, 8:04 AM

    It has been very helpful to me in terms of teaching my child.

  • Nakanji Prisca EbontaJan 07 2019, 4:19 PM

    I love it!! Thanks

  • Al-amin Rabi’uDec 19 2018, 4:08 PM

    It’s indeed amazing and interesting write up, useful to our younger ones. Cheers

  • DrNov 18 2018, 2:55 PM

    This is great information to help children understand number values and placement. Thanks!

  • Falae OluwasesanNov 12 2018, 6:26 PM

    Thanks so much, it help me to teach my son.

  • dawaOct 23 2018, 3:47 AM



  • ASma khanSep 08 2018, 11:21 AM

    It was very useful. Thank you so much. It helped me to teach my students in easily manner.

    • Rebecca TjatjiMar 10 2021, 2:46 PM

      Thanks, it helps my son.

  • GildasJul 27 2018, 12:22 AM

    This is a most useful contribution to the debate

  • Unenge RonaldJul 22 2018, 2:07 AM

    Self explanatory

  • AnilNov 23 2017, 11:14 AM