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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
Practice Time 3A
1. Multiply the following.
(a) tth th H t O (b) tth th H t O (c) tth th H t O
3 7 2 4 6 7 8 2 7 2 8 9
× 3 × 7 × 9
2. Find the product of the following.
(a) 1234 × 4 (b) 6169 × 3 (c) 2341 × 4 (d) 7641 × 7
(e) 9811 × 9 (f) 8765 × 5 (g) 9874 × 8 (h) 6874 × 6
Multiplication by a 2-Digit nuMber
Let us first revise the multiplication of a 3-digit number by a 2-digit number, then
extend the learning to find the multiplication of a 4-digit number by a 2-digit number.
example 1: Multiply 462 by 26.
Solution: Step 1: Write the multiplicand 462
and multiplier 26 in proper tth th H t O
place value columns. 4 6 2 Multiplicand
Step 2: Multiply 462 by 6 ones. × 2 6 Multiplier
462 × 6 ones = 2772 ones 2 7 7 2 462 × 6 ones
Step 3: Multiply 462 by 2 tens. + 9 2 4 0 462 × 2 tens
462 × 2 tens = 9240 ones 1 2 0 1 2 Product
Step 4: Add both partial products.
2772 + 9240 = 12012
Thus, 462 × 26 = 12,012
Remember
The number, that is, multiplied is called the multiplicand. 12 × 6 = 72
The number by which we multiply is called the multiplier.
Multiplicand and multiplier are commonly called the factors. Multiplicand Product
The result of the multiplication is called the product. Multiplier
Multiplication of a 4-digit Number by a 2-digit Number
example 2: Multiply 3231 by 12.
Solution: Step 1: Write the multiplicand 3231 tth th H t O
and the multiplier 12 in the 3 2 3 1
proper place value columns. × 1 2
56 Mathematics-4

