Math With Gurjit Singh

Math With Gurjit Singh Learn Math Online(anywhere); Face to Face in Melbourne Victoria. Dad’s Math Classes with his own K

22/05/2022

Math Formula (a^2-b^2)=(a+b)(a-b)

LHS means Left Hand Side
RHS means Right Hand Side

Question:
Prove (100-100)/(100-100)=2

Solution: LHS=(10^2-10^2)/10(10-10)
=(10+10)(10-10)/10(10-10)
=(10+10)/10
=20/10=2=RHS

😃

Find? ਲੱਭੋ?
21/10/2020

Find? ਲੱਭੋ?

08/10/2020

There are 15 Sparrows making noises on the Tree 🌳 in front of a house. A person come outside the house with a Gun 🔫 and shot a fire which killed 7 Sparrows. How many Sparrows left on the tree?

(A) 8
(B) 15
(C) 7
(D) 0

29/09/2020

In Punjabi

ਘਟਾਉ ਕਰੋ।
੩੮੨-੨੯੫
382-295

29/09/2020

Checking Jujhar Singh Rampur ‘s Answer.( Subtraction )

We can check the answer by adding answer in the bottom number, and make the Top number. If it matched then answer is correct otherwise the answer is incorrect.

29/09/2020

Checking the answer is correct
And can use the same method to do subtractions.
700-245=455

29/09/2020

Learn Subtraction
700-245

Grade/Year 5-7 Formula: Sale Price=Original (Regular) Price - Discount1. Regular Price of a Dinning Table set=$700; Sal...
22/09/2020

Grade/Year 5-7

Formula: Sale Price=Original (Regular) Price - Discount

1. Regular Price of a Dinning Table set=$700;
Sale Sale Sale 35% OFF
Find the Sale price?

2.Regular Price of a Shirt =$24.50
10% OFF the Original Price of a Shirt.
Find the Sale price?

Note: 35%=35/100 ; 10%=10/100;
24.5 / 10 =2.45 (Due to dividing by 10, Decimal point moves one space to Left).
24.50 = 24.5

09/09/2020

Count all the Star Points/ Find total Star Points.

Half Star is hidden under the paper.

It means 3 left hand points(seen),
3 hidden,
2 half Star points 1 Upper(Top) and 1 Down(bottom)we can see.

Hence, Total Points=3+3+2=8

09/09/2020

Find the number of 🐕.
Add the dogs from the bar graph(Vertical line) 3+1+2+1+3+1+3=14
Remember: Horizontal line is a Mass or Weight of Dogs in Kilograms.

09/09/2020

Find the 3rd Number?

1st number is 1.95, Next number is formed by subtracting 0.15 from the previous number.

Solution:
Next Number= (Previous number - 0.15) (Given in the Question; Read the Question)

Here First Number is 1.95

Therefore, 2nd number=(First number - 0.15)=1.95 - 0.15=1.80

It means 3rd number=(Second Number - 0.15)=1.80-0.15=1.65

03/09/2020

Method (1) 13+?=28
Suppose Weight of Cube =X
Therefore 13+X=28
X=28-13=15 grams.

Method (2) Count on fingers from 14 to 28
Then result is 15 grams.
This means we are adding weight in 13 grams to make total 28 grams in the Left Side.
Method (3) Draw 28 Lines, then cut 13 Lines, and then Count the remaining lines.
The result is 15

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