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    E:\Working\Brother_Education\Foundational_Stage_Maths-2_(11-09-2024)\Open_Files\Chap_01
                   \ 11-Sep-2024  Bharat arora   Proof-1                                    Reader’s Sign _______________________ Date __________

                  In the abacus, she puts 2 beads in hundreds spike, 3 beads in tens spike and 4 beads

                  in ones spike. So, it is representing 2 hundreds, 3 tens and 4 ones.

                  Thus, the abacus shows the number 234, read as
                  two hundred thirty-four.

                  Now, look at the abacus given alongside.

                                                                                         H       t     O
                  It has 5 hundreds, 0 tens and 9 ones.
                  So, the abacus shows the number 509, read as                                        No beads at tens

                  five hundred nine.                                                                place means 0 tens.

                          Knowledge Desk
                                                                                                      Note
                          ABACUS is the short form of Abundant Beads,                       A spike cannot have more
                          Addition and Calculation Utility Systems.                         than 9 beads.

                           Practice time 1C

                  1.  Write the numbers shown on the abacus. One has been done for you.
                        (a)                      (b)                     (c)                      (d)

                                H     t     O            H     t     O            H     t     O            H     t    O

                                    243

                  2.  draw the beads on each abacus to represent the given number.

                        (a)                      (b)                     (c)                      (d)

                                H     t     O            H     t     O            H     t     O            H     t    O

                                    194                      371                      490                      798

                           Think and Answer
                         1.  Shreya  runs  a  boutique.  She  bought  1  packet  of  100  buttons,  5  packets  of
                            10 buttons each, and 4 loose buttons. Count the number of buttons together and write the
                            number in words.
                         2.  Saloni bought 10 packets of 10 shirts each and her partner Shweta bought 6 packets of
                            10 jeans  each from an online shopping site for their clothing store. How many clothes did
                            they buy in all?

                  Mathematics-2                                                                                          17

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