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E:\Working\Focus_Learning\Math_Genius_3_(11-09-2024)\Open_Files\CHAP_05
\ 12-Sep-2024 Surender Prajapati Proof-5 Reader’s Sign _______________________ Date __________
Division of a 3-digit number
example 2: Divide 633 by 3.
Solution: Step 1: Arrange the numbers as shown here. 3 633 211 Q
Step 2: Divide 6 hundreds by 3. 3 × 2 = 6, so 6
03
6 hundreds ÷ 3 = 2 hundreds 3
03
Write 2 in the hundreds place of the quotient. 3
Subtract 6 – 6 = 0 0 R
Step 3: Bring down the tens. Divide 3 tens by 3.
3 tens ÷ 3 = 1 ten
Write 1 in the tens place of the quotient. Subtract 3 – 3 = 0
Step 4: Bring down the ones.
Divide 3 ones by 3. Checking:
(Quotient × Divisor) + Remainder = Dividend
3 ones ÷ 3 = 1 one 211 × 3 + 0 = 633
Write 1 in the ones place of the 633 + 0 = 633
quotient. Subtract 3 – 3 = 0 Thus, the answer is correct.
Thus, quotient (Q) = 211, Remainder (R) = 0.
example 3: Divide 805 by 4.
Solution:
4 805 201 Q Since, the second Checking:
8
005 digit is 0 and 0 < 4, (Quotient × Divisor) + Remainder = Dividend
4 bring down the next 201 × 4 + 1 = 805
1 R digit of dividend with 804 + 1 = 805
putting a 0 in quotient
for that number. 805 = 805
Thus, the answer is correct.
Thus, Q = 201, R = 1
Think and Answer
Find dividend, if
1. Q = 12, D = 4 and R = 0 2. Q = 320, D = 3 and R = 2
teacher’s
tip Encourage students to remember the multiplication tables sincerely before learning division.
Mathematics-3 93

