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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
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