Keywords: Subtract, Left, Take away, Difference, Remaining

__Subtraction (upto 20)__

** **

**Keywords: **Subtract, Left, Take away, Difference, Remaining

**Travel through**

**Teacher's Note**

Teacher can narrate the story and ask questions given below to
motivate the students to answer.

Number
of ** paruppu urundai** in the 3rd picture:

Number
of ** paruppu urundai** in the 4th picture:

**Could you tell the
number of** *paruppu urundai***eaten by the
calf? How? Answer: 4**

**Learn**

__Subtraction__

** **

**Practice**

__Subtract
using lines.__

** **

__Subtract__

19-7=
__12__

16-5=
__11__

13
– 6 = __7__

11
- 10 = __1__** **

**Teacher's Note**

The students can also use the beads in the Maths kit box, to solve
the sums given above.

** **

**Try this**

**Complete the facts
using "****+****" or "** **−****" symbol.**

**7 + 5 = 12**

**11− 0 = 11**

**13** **– 3 = 10**

**16 – 1 = 15**

**8** **– 8 = 0**

**19** **– 5 = 14**

**14 + 2 = 16**

**15 + 3 = 18**

** **

**Think like a
Mathematician**

**Work out the
subtraction fact on each arrow. Which colour balloon does not get burst? Circle
it.**

** **

**Mental math (Oral)**

•
There are 18, drinking honey in a garden, After sometime 6 of them
returned to their . How many will be left?

__Answer: 11__

• saw 16 in a tree. The next day found that 5 fell down. How many are remaining in the tree now?

__Answer: 11__

•
A parking area can accommodate 15 . If 10 were already parked
in it then how many more could be parked there?

__Answer: 5__

** **

**Pleasure time**

**Complete the path to
reach the victory cup.**

** **

__Numbers__

**Recall**

**How many tender
coconuts are there in each box?**

**Draw the correct
number of dots in each box.**

**Draw ****fewer ****and ****more ****for the given
pictures. One is done for you.**

** **

**Teacher's Note**

Teacher has to facilitate the children to draw fewer as well as more pictures in any possible ways with respect to the pictures given in the middle column.

**Write the missing
numbers on the number line.**

**What comes ****after ****the given number?**

**6 **__7__** **

**10 **__11__

**15 **__16__

**19 **__20__

**What comes ****before ****the given number?**

__2 __**3**

__7__**
8**

__12__**
13**

__16__**
17**

**What comes ****in between**** the given numbers?**

**4 **__5__**
6**

**12 **__13 __**14**

**17 **__18__**
19**

**Count and write the
number of beads that you see. Draw one more bead and write the new total. One
is done for you.**

**Complete the table.**

**Draw more beads to
show the given number.**

Tags : Numbers | Term 3 Chapter 2 | 1st Maths , 1st Maths : Term 3 Unit 2 : Numbers

Study Material, Lecturing Notes, Assignment, Reference, Wiki description explanation, brief detail

1st Maths : Term 3 Unit 2 : Numbers : Subtraction (upto 20) | Numbers | Term 3 Chapter 2 | 1st Maths

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