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Thought-Process to Discover Knowledge

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Books and other education websites provide "matter-of-fact" knowledge. Instead, nubtrek provides a thought-process to discover knowledge.

In each of the topic, the outline of the thought-process, for that topic, is provided for learners and educators.

Read in the blogs more about the unique learning experience at nubtrek.continue

This page quickly reviews the numbers from `10` to `1000` and introduces grouping of `10` units to `1` ten. The grouping is further explained to understand units, tens, hundreds, etc. This is an important concept to understand numerical arithmetics.



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In this page, the following are explained

 •  grouping of `10` of units to `1` ten

 •  introduces the basics to representing numbers in place-value.

How many blocks are there in the picture?number 10

  • `10`
  • `10`
  • `2`

The answer is '`10`'

There are `10` blue color blocks in the picture. These blocks are packed into a purple block and marked `10`. number 10 new block In this course, the purple block is used to represent `10`.

Blue block represents `1` and the grouped purple block represent `10`. number 10 new block Consider that the smaller blue block is a lower place-value and the larger purple block is higher place-value.

Combining a `10` of lower place value into `1` of higher place value is grouping.

Which of the following is a meaning for the word "grouping"?

  • joining and combining together
  • joining and combining together
  • ground level

The answer is "joining and combining together".

What is the term used to refer "join and combine together"?

  • Pronunciation : Say the answer once
    Spelling: Write the answer once

The answer is "grouping".

Grouping: `10` of a lower place value is combined to `1` of higher place value.

What number is represented in the picture?number 11

  • `11`
  • `11`
  • `2`

The answer is '`11`'
The purple block is used to represent ten and additional block represents `1`. So, the total is `11`.

What number is represented in the picture?number 12

  • `11`
  • `12`
  • `12`

The answer is '`12`'

What number is represented in the picture?number 13

  • `13`
  • `13`
  • `12`

The answer is '`13`'

What number is represented in the picture?number 14

  • `17`
  • `14`
  • `14`

The answer is '`14`'

What number is represented in the picture?number 15

  • `15`
  • `15`
  • `19`

The answer is '`15`'

What number is represented in the picture?number 16

  • `16`
  • `16`
  • `12`

The answer is '`16`'

What number is represented in the picture?number 17

  • `11`
  • `17`
  • `17`

The answer is '`17`'

What number is represented in the picture?number 18

  • `18`
  • `18`
  • `13`

The answer is '`18`'

What number is represented in the picture?number 19

  • `11`
  • `19`
  • `19`

The answer is '`19`'

Numbers above `10`: The numbers above 10 are
`11` (eleven),
`12` (twelve),
`13` (thirteen),
`14` (fourteen),
`15` (fifteen),
`16` (sixteen),
`17` (seventeen),
`18` (eighteen),
`19` (nineteen).

What number is represented in the picture?number 20

  • `20`
  • `20`
  • `12`

The answer is '`20`'

What number is represented in the picture?number 24

  • `24`
  • `24`
  • `2`

The answer is '`24`'

What number is represented in the picture?number 32

  • `15`
  • `32`
  • `32`

The answer is '`32`'

What number is represented in the picture?number 47

  • `47`
  • `47`
  • `40`

The answer is '`47`'

What number is represented in the picture?number 54

  • `54`
  • `54`
  • `52`

The answer is '`54`'

What number is represented in the picture?number 65

  • `60`
  • `65`
  • `65`

The answer is '`65`'

What number is represented in the picture?number 65

  • Pronunciation : Say the answer once
    Spelling: Write the answer once

The answer is 'sixty five'. Instead of laying out all the blocks, the representation gives the count of each of the block. The blocks are of sizes `1`, and `10`.

What number is represented in the picture?number 70

  • `77`
  • `70`
  • `70`

The answer is '`70`'

What number is represented in the picture?number 70

  • Pronunciation : Say the answer once
    Spelling: Write the answer once

The answer is 'seventy'.

What number is represented in the picture?number 84

  • `89`
  • `84`
  • `84`

The answer is '`84`'

What number is represented in the picture?number 84

  • Pronunciation : Say the answer once
    Spelling: Write the answer once

The answer is 'Eighty Four'.

What number is represented in the picture?number 97

  • `97`
  • `97`
  • `90`

The answer is '`97`'

What number is represented in the picture?number 97

  • Pronunciation : Say the answer once
    Spelling: Write the answer once

The answer is 'ninety seven'.

Numbers in the tens:
`10`(ten),
`20`(twenty),
`30`(thirty),
`40`(forty),
`50`(fifty),
`60`(sixty),
`70`(seventy),
`80`(eighty),
`90`(ninety)

What number is represented in the picture?number 100

  • `10`
  • `100`
  • `100`

The answer is '`100`'

What number is represented in the picture?number 100

  • `10`
  • `100`
  • `100`

The answer is '`100`'

What number is represented in the picture?number 136

  • `36`
  • `136`
  • `136`

The answer is '`136`'

What number is represented in the picture?number 721

  • `721`
  • `721`
  • `21`

The answer is '`721`'

What number is represented in the picture?number 721 alternate form

  • Pronunciation : Say the answer once
    Spelling: Write the answer once

The answer is 'Seven hundred twenty one'. Instead of laying out the entire blocks, the representation gives the count of each of the block. The blocks are of sizes `1`, `10`, and `100`.

What number is represented in the picture?number 721 place value form

  • `721`
  • `721`
  • `21`

The answer is '`721`'. Instead of providing a pictorial representation of the blocks, the value is given in words. The values are hundreds, tens, and units, equivalently representing blocks of size `100` `10` and `1`.

Numbers are represented as sequence of digits. If `721` is given, the number of digits are counted as `3` and the number is read as seven hundred and twenty one.number 721 place value form

What number is represented in the picture?number 1000

  • `721`
  • `721`
  • `1000`

The answer is '`1000`'.

What is `1000` called?

  • thousand
  • thousand
  • lakh

The answer is "thousand"

What number is represented in the picture?number 5361 place value form

  • `1635`
  • `5361`
  • `5361`

The answer is '`5361`'

What number is represented in the picture?number 28573 place value form

  • `28`
  • `28,573`
  • `28,573`

The answer is '`28,573`'

Large Numbers : The digits in large numbers are

`1` (units),
`10` (tens),
`100`(hundreds),

`1,000`(thousands)
 •  `1000` thousands
 •  `10,000` ten thousandsnumber 28573 place value form An example is given in the figure.

                            
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