Page 12 - Math_Genius_V1.0_C4_Flipbook

E:\Working\Focus_Learning\Math_Genius_4_(25-10-2023)\Open_Files\Chap-01
\\December 6, 2023 1:30 PM Bharat Arora P-6 Reader _________________________ Date: ___________________74

example 1: Write the following numbers in numerals using a place value chart. And,
separate periods by using commas.

(a) Sixty-one thousand seven hundred twenty-three
(b) Eleven thousand two hundred eighty-two
(c) Seventy-nine thousand one hundred

(d) Ninety thousand ten

Solution:
(a) tth th H t O (b) tth th H t O

6 1 7 2 3 1 1 2 8 2
Sixty-one thousand seven hundred Eleven thousand two hundred

twenty-three: 61,723 eighty-two: 11,282
(c) tth th H t O (d) tth th H t O

7 9 1 0 0 9 0 0 1 0
Seventy-nine thousand one hundred: Ninety thousand ten: 90,010

79,100
example 2: Mark the periods using commas and write the number names.
(a) 42536 (b) 50603 (c) 39827

Solution: First, write the numbers in the place value chart, then use the (,) to mark

the periods and hence write the number names.
thousands Ones Numbers written Number names
tth th H t O using comma

(a) 4 2 5 3 6 42,536 Forty-two thousand five
hundred thirty-six
(b) 5 0 6 0 3 50,603 Fifty thousand six hundred
three
(c) 3 9 8 2 7 39,827 Thirty-nine thousand eight
hundred twenty-seven

representing 5-digit numbers on the Abacus

Let us represent the following 5-digit numbers on an abacus.

(a) 32,715 (b) 73,046

For this, we take a 5-spiked abacus and put the beads as shown.
Note
(a) (b) We do not put any

bead in the spike of
the abacus, if its
respective place has
tth th H t O tth th H t O zero in the number.

10 Mathematics-4