Math KG : Worksheet 5 : Subtracting numbers by counting back

1 Fill in the blanks 

a) 6 - 1 = _________

Step 1

Check whether its + or -

here its -

Step 2 

find the smallest number

here the smallest is 1

leave one finger

Step 3 

now lets look for the another number which is 6 here

since its - we have to count back

we left one finger : already we are having 6 - count backwards which is 5

hence  6 - 1 = 5

b) 5 - 4 = ________

Step 1

Check whether its + or -

here its -

Step 2 

find the smallest number

here the smallest is 4

lets leave four fingers

Step 3 

now lets look for the another number which is 5 here

since its - we have to count back

we left four fingers : already we are having 5 - count backwards

first finger goes with 4
second finger goes with 3
third finger goes with 2
fourth finger goes with 1

hence  5 - 4 = 1

2 Write the subtraction sentences in the boxes provided. Then fill in the blanks.

a) what is the differences between 10 and 6?

Differences which means we have to do subtraction

so  the subtraction sentence is 10 - 6 = ____

now lets find 10-6 = ?

Method 1

we can use number tracks to find the differences

first in the number track, mark 10 and 6

now lets check to reach 6 from 10 how many steps we have to move

hence 10 - 6 = 4

Method 2

Step 1

Check whether its + or -

here its -

Step 2 

find the smallest number

here the smallest is 6

lets leave six fingers

Step 3 

now lets look for the another number which is 10 here

since its - we have to count back

we left four fingers : already we are having 10 - count backwards 

first finger goes with 9
second finger goes with 8
third finger goes with 7
fourth finger goes with 6
fifth finger goes with 5
sixth finger goes with 4

hence  10-6 = 4

Math KG : Addition and subtraction : Worksheet 3

5. Fill in the missing numbers


a)

Step 1

we have to make the numbers inside the dotted box to be 10

so,

Step 2

Inside the dotted box, we have 7 and we need to find another number
Both together should make 10

to reach 10 from 7 lets see how many steps we have to move forward

so 7 + 3 = 10

Step 3

now we should check what number if we add with 3 will get 9
that is, to reach 9 from 3 lets see how many steps we have to move forward

so 3 + 6 = 9
hence 

9 + 7 = 16
6 + 10 = 16

d)

Step 1


we have to make the numbers inside one of the dotted box to be 10

Step 2

Inside the dotted box, we have 2 and we need to find another number
Both together should make 10


to reach 10 from 2 lets see how many steps we have to move forward

so 2 + 8 = 10

Step 3

now we should check what number if we add with 8 will get 9

that is, to reach 9 from 8 lets see how many steps we have to move forward

8 + 1 = 9

Step 4

now, 4 and 1 together make 5 that is 4 +1=5

hence 2 + 9 + 4 = 15
also 10 + 5 = 15

Math KG : Adding numbers by using number pairs

Addition

Addition is bringing two or more numbers(or objects) together to make a new total

Example

Jim has 2 candies and Tim has 5 candies

both together has 2 + 5 which is 7 candies in total

we are having many methods to teach addition to the kids

Method 1 ( Using fingers )

Number of candies Jim has = 2
Number of candies Tim has = 5

2 is the smallest number , so leave two fingers

one finger goes with 6 and second finger goes with 7 ( since we are adding we have to move forward from 5)

hence total candies = 7

Method 2 (Using Number tracks)

Number of candies Jim has = 2
Number of candies Tim has = 5

here the number track

1 2 3 4 5 6 7 8 9 10 11

lets start with Jim who has 2 candies, so lets mark on 2

1 2 3 4 5 6 7 8 9 10 11

now lets go to Tim who has 5 candies, so lets move 5 steps forward

1 2 3 4 5 6 7 8 9 10 11

we reached on 7.

Hence total candies = 7

Making 10

Example : 7 + 6

lets consider, we have 7 RED candies and 6 GREEN candies

0 0 0 0 0 0 0 0 0 0 0 0 0

now lets place 10 black candies below this

0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0

to match this black candies with the above row, 

0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0

so we can write this 7 + 6 = 7 + 3 + 3 = 10 + 3

Question 1

here we go,

first we make the dotted box into 10, that is

now we have to reach 10 from 5

so to reach 10 from 5 we need 5 more steps ahead

now lets fill the last circle. here we have to reach 11 from 5

so to reach 11 from 5 we need 6 more steps ahead

11 + 5 = 16
6 + 10 =16

Math KG : Symmetry

Symmetry

Symmetry is when one shape becomes exactly like another if you flip , slide or turn it. That is symmetry is Reflection or a mirror image.

Line of Symmetry


Line of Symmetry is the imaginary line where we could fold the image and have both halves match exactly. 

Those are some examples of Symmetry and those lines are line of symmetry.










Non Symmetry

 Those are some Non Symmetrical shapes

Math KG : Shapes and Solids

Plane Geometry

Plane geometry is about flat shapes like lines, circles, triangles... 
That is , Shapes that can be drawn on a piece of paper.

Point

A point is an exact location. It has no size, only position.

we can show point as dots so that it can be seen. Also named it as 'A'. But point really don't have size at all.





Line

Line is a straight which has no curves,no thickness and extends in both the directions without end (infinitely).

Those are the lines which are straight, no curve, we can extend them in both the directions.





Triangle

Triangle has 

• 3 sides (3 lines)
• 3 points (3 Corners)
• No curve
• flat

  

Those are some triangle shapes which has 3 sides,3 points,no curve




Quadrilateral

A quadrilateral which means

• four sided shape
• should be closed
• flat shape
• no curve only straight sides

 

Those are some quadrilateral shapes.
Square, Rectangle, Rhombus, Parallelogram, Trapezium are quadrilaterals which have their own properties.

Square

A Square has

• four sided shape which have equal length
• flat shape
• no curve only straight sides
• should be closed

(All angles must be 90 degree)








Rectangle

• four sided shape where its Opposite sides should be equal in length
• flat shape
• no curve only straight sides
• should be closed

(All angles must be 90 degree)

we can say square is also a rectangle. since square has all the four sides equal which means its opposite sides should be equal.


Rhombus

• four sided shape where all its sides should be equal in length
• Opposite sides must be parallel
• flat shape
• no curve only straight sides
• should be closed

(Opposite angles must be equal)
 we can say square is also a rhombus. since square has all the four sides equal and its opposite sides are parallel. sometimes rhombus can also called as diamond.


Parallelogram

• four sided shape where its Opposite sides should be equal in length
• flat shape
• no curve only straight sides
• should be closed

 

(Opposite angles must be same)
we can say square,rhombus,rectangle are also parallelogram. 




Circle
The circle is a plane shape. The set of all points on a plane that are a fixed distance from a center.

Those are in circle shape. All the lines passes through the center must be equal in length.





Oval

An oval is any curve that looks like an egg or an ellipse.

Oval is not a circle since all the lines passes through the center is NOT equal in length.



Solid Shapes

Solid shapes is the shape of three dimensional space, that is the kind of space we live in. (in simple words, its not a flat object.) 

Sphere

A 3-dimensional object shaped like a ball. Every point on the surface is same distance from the center.

• No flat faces
• one curve face
• Example : Ball

Cube

A box shaped solid object that has 6 identical square faces.

• No curve faces
• 6 flat faces
• flat faces must be in identical square
• Example : Ice cubes

Cuboid

A box shaped solid object that has 6 identical Rectangle faces.

• No curve faces
• 6 flat faces
• flat faces must be in identical rectangle
• Example : Rectangular box

cone

A solid 3-dimensional object with a circular flat base joined to a curved side that ends in an apex point.

• one curve face
• one flat face (in circle)
• Example : Birthday cone cap, cone ice creams

Cylinder

A solid object with two identical flat ends that are circular or elliptical and one curved side.

• One curve face
• two flat circular face
• Example : cans