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E:\Working\Focus_Learning\Math_Genius_4_(25-10-2023)\Open_Files\Chap-03
\\December 6, 2023 1:25 PM Bharat Arora P-6 Reader _________________________ Date: ___________________74

example 1: Find 937 × 506. example 2: Find 804 × 590.
Solution: Solution:

L tth th H t O L tth th H t O
9 3 7 8 0 4

× 5 0 6 500 + 0 + 6 × 5 9 0 500 + 90 + 0
5 6 2 2 937 × 6 7 2 3 6 0 804 × 90
0 0 0 0 937 × 0 + 4 0 2 0 0 0 804 × 500

+ 4 6 8 5 0 0 937 × 500 4 7 4 3 6 0 Product
4 7 4 1 2 2 Product Thus, 804 × 590 = 474360

Thus, 937 × 506 = 474122 Note

Multiplying by 0 ones can be skipped.

maths fun
Play in a pair. One of the members will roll 3 dice together and form
the greatest and the smallest 3-digit numbers using the outcomes on the
dice. The other member of the pair will now multiply the numbers
so obtained. Now, the members will change their role. The second
member will roll 3 dice together and form the numbers. The first
member will now multiply the numbers so obtained. Repeat the
process. The member who gives more correct answers will win.

Practice Time 3C

Find the product of the following.

1. 325 × 249 2. 709 × 413 3. 372 × 165 4. 248 × 403

5. 273 × 304 6. 504 × 332 7. 555 × 125 8. 589 × 251

Multiplication by a nuMber enDing WitH Zero

Abdul and his sister Zoya want to buy sweets. Abdul's mother gave 5 notes of `100
to Abdul.
Zoya: How much money did mother give you brother?

Abdul: Mother gave me `500.
Zoya: How do you calculate it so quickly?

Abdul: I will explain the concept behind this to you with the help of examples.
To get the product of a number with another number which has zeros at the end,
we first multiply the two numbers (without the zeros).

Then, count the number of zeros and place that number of zeros 100 × 5 = 500
with the product so obtained. So, 1 × 5

58 Mathematics-4