Basic HTML Version

|  | Table of Contents |  | View Full Version

Page 95 - Math_Genius_V1.0_C3_Flipbook
P. 95

    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

| 90 91 92 93 94 95 96 97 98 99 100 |