8,090
edits
Changes
Jump to navigation
Jump to search
Line 265:
Line 265: − + − + − + − + − + − + − + − + − + − + − + − + − + − + Line 313:
Line 313: − + − + − + − + − + − + − + − + − + − + − + − + − + + + + + + − + − + − + − + − | + − + − + − + − + − + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + − + + + + + + + + − + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + − == Numbers - More or Less (By 2s) ==+ − + + − + + + + + + + + + + + + + + + + Line 417:
Line 619: − + − Line 428:
Line 629: − +
→Order of Numbers (Ascending and Descending)
!Write the number
!Write the number
|-
|-
|[[File:Place value system - Caps.png|frameless|250x250px]]
|[[File:Place value system - Caps.png|frameless|200x200px]]
|[[File:Place value system - Cap.png|frameless|120x120px]]
|[[File:Place value system - Cap.png|frameless|100x100px]]
|31
|31
|-
|-
|[[File:Place value system - Fishes 5.png|frameless|200x200px]]
|[[File:Place value system - Fishes 5.png|frameless|200x200px]]
|[[File:Place value system - Fishes 5.png|frameless|200x200px]]
|[[File:Place value system - Fishes 5.png|frameless|180x180px]]
|55
|55
|-
|-
|[[File:Place value system - Balloons 4.png|frameless|250x250px]]
|[[File:Place value system - Balloons 4.png|frameless|160x160px]]
|[[File:Place value system - Balloons 2.png|frameless|125x125px]]
|[[File:Place value system - Balloons 2.png|frameless|90x90px]]
|
|
|-
|-
|[[File:Place value system - Twigs 6.png|frameless|300x300px]]
|[[File:Place value system - Twigs 6.png|frameless|200x200px]]
|[[File:Place value system - Twig 1.png|frameless|121x121px]]
|[[File:Place value system - Twig 1.png|frameless|80x80px]]
|
|
|-
|-
|[[File:Place value system - Banana 1.png|frameless]]
|[[File:Place value system - Banana 1.png|frameless|250x250px]]
|[[File:Place value system - Banana 2.png|frameless|96x96px]]
|[[File:Place value system - Banana 2.png|frameless|96x96px]]
|
|
|-
|-
|
|
|[[File:Place value system - Marbles 4.png|frameless|250x250px]]
|[[File:Place value system - Marbles 4.png|frameless|190x190px]]
|
|
|-
|-
|[[File:Place value system - Pencils 3.png|frameless|192x192px]]
|[[File:Place value system - Pencils 3.png|frameless|100x100px]]
|[[File:Place value system - Pencils 8.png|frameless|250x250px]]
|[[File:Place value system - Pencils 8.png|frameless|160x160px]]
|
|
|-
|-
|[[File:Place value system - Chicks-01.png|frameless]]
|[[File:Place value system - Chicks-01.png|frameless|180x180px]]
|
|
|
|
|-
|-
|[[File:Place value system - Cup 1.png|frameless|64x64px]]
|[[File:Place value system - Cup 1.png|frameless|64x64px]]
|[[File:Place value system - Cups 5.png|frameless]]
|[[File:Place value system - Cups 5.png|frameless|190x190px]]
|
|
|-
|-
|
|
|[[File:Place value system - Saucers 9.png|frameless]]
|[[File:Place value system - Saucers 9.png|frameless|190x190px]]
|
|
|}
|}
!Number
!Number
|-
|-
|[[File:Place value system - Caps green.png|frameless|250x250px]]
|[[File:Place value system - Caps green.png|frameless|180x180px]]
|[[File:Place value system - Caps red.png|frameless|180x180px]]
|[[File:Place value system - Caps red.png|frameless|180x180px]]
|54
|54
|-
|-
|[[File:Place value system - Fish green.png|frameless|200x200px]]
|[[File:Place value system - Fish green.png|frameless|180x180px]]
|[[File:Place value system - Fish red.png|frameless|200x200px]]
|[[File:Place value system - Fish red.png|frameless|180x180px]]
|56
|56
|-
|-
|[[File:Place value system - Oranges outline 1.png|frameless|250x250px]]
|[[File:Place value system - Oranges outline 1.png|frameless|200x200px]]
|[[File:Place value system - Oranges outline 2.png|frameless|125x125px]]
|[[File:Place value system - Oranges outline 2.png|frameless|180x180px]]
|
|49
|-
|-
|[[File:Place value system - Match sticks 1.png|frameless|300x300px]]
|[[File:Place value system - Match sticks 1.png|frameless|200x200px]]
|[[File:Place value system - Match sticks 2.png|frameless|300x300px]]
|[[File:Place value system - Match sticks 2.png|frameless|220x220px]]
|
|81
|-
|-
|[[File:Place value system - Banana outline 1.png|frameless|300x300px]]
|[[File:Place value system - Banana outline 1.png|frameless|200x200px]]
|[[File:Place value system - Banana outline 2.png|frameless|200x200px]]
|[[File:Place value system - Banana outline 2.png|frameless|200x200px]]
|
|95
|-
|-
|
|
|[[File:Place value system - Marbles 4.png|frameless|250x250px]]
|[[File:Place value system - Marbles outline.png|frameless|200x200px]]
|
|07
|}
{| class="wikitable"
!Color Tens place green
!Color the units place red
!Number
|-
|-
|[[File:Place value system - Pencils 3.png|frameless|192x192px]]
|[[File:Place value system - Book colouring-01.png|frameless|180x250px]]
|[[File:Place value system - Pencils 8.png|frameless|250x250px]]
|[[File:Place value system - Book colouring-02.png|frameless|200x200px]]
|
|38
|-
|-
|[[File:Place value system - Chicks-01.png|frameless]]
|[[File:Place value system - Ducks outline.png|frameless|220x220px]]
|
|
|10
|-
|-
|[[File:Place value system - Cup 1.png|frameless|64x64px]]
|[[File:Place value system - Bottles colouring 1.png|frameless|200x200px]]
|[[File:Place value system - Cups 5.png|frameless]]
|[[File:Place value system - Bottles colouring 2.png|frameless|200x200px]]
|
|26
|-
|-
|
|
|[[File:Place value system - Saucers 9.png|frameless]]
|[[File:Place value system - Spoons outline.png|frameless|200x200px]]
|
|02
|}
|}
=== Activity: Finding the place-value ===
=== Activity: Finding the place-value ===
Number Exercise – Identify the ones and tens place of a number.
{| class="wikitable"
| colspan="4" |What is in the ones place in each number?
|-
|26
{| class="wikitable"
| style="height:30px; width:30px;" |6
|}
|31
{| class="wikitable"
| style="height:30px; width:30px;" |1
|}
|10
{| class="wikitable"
| style="height:30px; width:30px;" |
|}
|53
{| class="wikitable"
| style="height:30px; width:30px;" |
|}
|-
|65
{| class="wikitable"
| style="height:30px; width:30px;" |
|}
|12
{| class="wikitable"
| style="height:30px; width:30px;" |
|}
|44
{| class="wikitable"
| style="height:30px; width:30px;" |
|}
|39
{| class="wikitable"
| style="height:30px; width:30px;" |
|}
|-
|20
{| class="wikitable"
| style="height:30px; width:30px;" |
|}
|7
{| class="wikitable"
| style="height:30px; width:30px;" |
|}
|88
{| class="wikitable"
| style="height:30px; width:30px;" |
|}
|74
{| class="wikitable"
| style="height:30px; width:30px;" |
|}
|-
| colspan="4" |What is in the tens place in each number?
|-
|40
{| class="wikitable"
| style="height:30px; width:30px;" |4
|}
|96
{| class="wikitable"
| style="height:30px; width:30px;" |9
|}
|18
{| class="wikitable"
| style="height:30px; width:30px;" |
|}
|63
{| class="wikitable"
| style="height:30px; width:30px;" |
|}
|-
|9
{| class="wikitable"
| style="height:30px; width:30px;" |
|}
|47
{| class="wikitable"
| style="height:30px; width:30px;" |
|}
|59
{| class="wikitable"
| style="height:30px; width:30px;" |
|}
|75
{| class="wikitable"
| style="height:30px; width:30px;" |
|}
|-
|25
{| class="wikitable"
| style="height:30px; width:30px;" |
|}
|11
{| class="wikitable"
| style="height:30px; width:30px;" |
|}
|5
{| class="wikitable"
| style="height:30px; width:30px;" |
|}
|33
{| class="wikitable"
| style="height:30px; width:30px;" |
|}
|-
| colspan="4" |Circle all numbers having zero in the ones place
25 68 90 56 92 30 29 41
|-
| colspan="4" |Circle the numbers having 5 in the tens place
52 95 30 59 18 5 91 85
|}
== Numbers have a value ==
== Numbers have a value ==
Numbers – Are they more or less?
{| class="wikitable"
|[[File:Place value system - tree.png|frameless|200x200px]]
| rowspan="2" style="height:200px; width:200px;" |'''Remember, we studied last year that,'''
'''Trees have more leaves'''
== Activity: Farm Fresh ==
''' And a plant has less leaves.'''
|[[File:Place value system - plant.jpg|frameless|253x253px]]
|-
| style="height:120px; width:200px;" |Can we count the number of leaves of a Tree?
'''Too Many to Count!!!!'''
| style="height:120px; width:200px;" |Can we count the number of leaves of a plant?
'''Yes, there are a few.'''
|}
== Numbers have a value ==
{| class="wikitable"
|[[File:Place value system - Moon and stars outline.png|left|frameless|208x208px]]
Color what is more in yellow.
Moon: _________________
Stars: ________________
|Which animal has more feathers?
Color it in blue.
[[File:Place value system - Ostrich outline.jpg|frameless|168x168px]] [[File:Place value system - Peacock outline.png|frameless|165x165px]]
|-
|[[File:Place value system - Wickets.png|left|frameless|121x121px]][[File:Place value system - Ball outline.png|frameless|70x70px]]
Wickets: ______________
Ball: _______________
Color what is less in red.
|Which animal has more legs? Tick one.
[[File:Place value system - ladybug.png|frameless|82x82px]] [[File:Place value system - centipede.png|frameless|180x180px]]
|}
=== Activity: Farm Fresh ===
Number Exercise – Count and Compare Numbers
Count and write the number. Tick whichever is more.
[[File:Place value system - Farm Activity.PNG|frameless|594x594px]]
=== Numbers - More or Less (By 1s, 2s, 5s) ===
Write the numbers in sequence. By how many more or less are the numbers in the boxes.
[[File:Place value system - Catterpillar 1.png|frameless]] [[File:Place value system - Catterpillar 2.png|frameless]]
[[File:Place value system - Number Flowers 1.png|frameless|270x270px]] [[File:Place value system - Number Flowers 2.png|frameless|286x286px]]
[[File:Place value system - Steps.png|frameless]]
=== Activity: Find the counting pattern ===
Number Exercise: Counting by 2s, 3s and 5s
Find or write the given skip counting pattern.
[[File:Place value system - Number in Shapes 5.png|frameless|500x500px]]
[[File:Place value system - Number in Shapes 4.png|frameless|500x500px]]
[[File:Place value system - Number in Shapes 2.png|frameless|500x500px]]
[[File:Place value system - Number in Shapes 1.png|frameless|500x500px]]
[[File:Place value system - Number in Shapes 3.png|frameless|500x500px]]
== Ascending and Descending Order of Numbers ==
== Ascending and Descending Order of Numbers ==
We have seen that numbers have value based on the place in which they are present. Many times, we come across smallest and greatest of a given set of numbers in our activities.
[[File:Place value system - Ganesha outline 1.png|right|frameless|475x475px]]
We have seen that numbers have value based on the place in which they are present. Many times, we come across smallest and greatest of a given set of numbers in our activities.
For example, would you like to eat more or less of your favourite dish? Would you like to drink more or less of a cough medicine?
For example, would you like to eat more or less of your favourite dish? Would you like to drink more or less of a cough medicine?
Ganesha likes to have more modakas. Help Ganesha choose the order of plates.
Ganesha likes to have more modakas. Help Ganesha choose the order of plates and colour the picture.
There are 6 plates having following number of modakas.
[[File:Place_value_system_-_modaka_2.png|frameless|150x150px]] [[File:Place_value_system_-_modaka_1.png|frameless|150x150px]] [[File:Place_value_system_-_modaka_5.png|frameless|150x150px]]
[[File:Place_value_system_-_modaka_6.png|frameless|150x150px]] [[File:Place_value_system_-_modaka_4.png|frameless|150x150px]] [[File:Place_value_system_-_modaka_3.png|frameless|150x150px]]
[[File:Place value system - ascending numbers.PNG|center|frameless|380x380px]]
Ganesha says <blockquote>“hmm… give me the plates having a smaller number of modakas first”. </blockquote>So, how do you choose the order? Find a plate with the smallest number of modakas, then next smaller number and so on….
[[File:Place value system - ascending numbers 2.PNG|center|frameless|460x460px]]
<big>'''Ascending Order - numbers increasing in value from smallest to largest'''</big>
[[File:Place value system - Bhima (2).jpg|right|frameless|266x266px]]
Consider Bhima, who eats lots of food. He was also a great cook. He would say, <blockquote>“hmm… give me the plates having greatest number of modakas first”. </blockquote>Now, how do you choose serve him? You should find a plate with the greatest number of modakas first.
[[File:Place value system - descending numbers.PNG|center|frameless|450x450px]]
'''<big>Descending Order – numbers decreasing in value from largest to smallest.</big>'''
== Place-value of Three-Digit Numbers ==
== Place-value of Three-Digit Numbers ==
[[File:Child playing football.jpg|thumb|Show Harish's moves on the football field.]]
[[File:Child playing football.jpg|thumb|Show Harish's moves on the football field.]]
Harish was playing football in his school. He made the following moves with the ball in the field. Count and write the numbers in the squares where the arrow starts and ends. Count according to the spaces moved forward or backwards.
Harish was playing football in his school. He made the following moves with the ball in the field. Count and write the numbers in the squares where the arrow starts and ends. Count according to the spaces moved forward or backwards.
[[File:Number_table_-_Harish.png|center|frameless|400x400px]]
[[File:Number table - Harish.png|frameless|250x250px]]
# He moved forward by 5 boxes from ______________ to ____________
# He moved forward by 5 boxes from ______________ to ____________
# He moved forward by 10 boxes from ____________ to _____________
# He moved forward by 10 boxes from ____________ to _____________
Number Exercise – Identify the ones, and tens place of a number.
Number Exercise – Identify the ones, and tens place of a number.
[[File:Finding Place-value.PNG|frameless|400x400px]]
[[File:Finding Place-value.PNG|frameless|500x500px]]
== Activities and Exercises ==
== Activities and Exercises ==