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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
Step 2: Multiply 3231 by 2 ones. tth th H t O
3231 × 2 ones = 6462 ones. 3 2 3 1
× 1 2
6 4 6 2
Step 3: Multiply 3231 by 1 ten tth th H t O
3231 × 1 ten = 3231 tens 3 2 3 1
= 32310 ones 1 2
6 4 6 2
+ 3 2 3 1 0
Step 4: Add both partial products. tth th H t O
= 6462 + 32310 3 2 3 1
= 38772. × 1 2
6 4 6 2
+ 3 2 3 1 0
3 8 7 7 2
Practice Time 3B
Find the product of the following.
1. 248 × 27 2. 301 × 59 3. 543 × 18 4. 1495 × 64
5. 2432 × 58 6. 3046 × 42 7. 4078 × 37
Multiplication by a 3-Digit nuMber
Multiplication of a 3-digit number by a 3-digit number is the same as multiplication
of a 2-digit number by a 2-digit number.
Let us multiply 276 by 234.
Expand the multiplier 234 and start multiplying by using the following steps:
Step 1: Multiply 276 by the 4 ones.
276 × 4 = 1104 tth th H t O
Step 2: Multiply 276 by 3 tens. 2 7 6
276 × 30 = 8280 × 2 3 4 200 + 30 + 4
Step 3: Multiply 276 by 2 hundreds. 1 1 0 4 276 × 4
276 × 200 = 55200 8 2 8 0 276 × 30
Step 4: Add the partial products. + 5 5 2 0 0 276 × 200
6
4
5 8 4
1104 + 8280 + 55200 = 64584 Product
Thus, 276 × 234 = 64584.
Mathematics-4 57

