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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
Now, if we add the place values of each digit together, then we get
100000 + 20000 + 4000 + 500 + 80 + 7 = 1,24,587 ← Short Form
Inversely, we can express the number as the sum of place values of each digit as:
1,24,587 = 100000 + 20000 + 4000 + 500 + 80 + 7 ← expanded Form
example 2: Express the following numbers in their expanded form.
(a) 23498 (b) 64021 (c) 578587 (d) 983198
Solution:
(a) We can express 23498 in the expanded form as
23498 = 2 × 10000 + 3 × 1000 + 4 × 100 + 9 × 10 + 8 × 1
= 20000 + 3000 + 400 + 90 + 8
(b) We can express 64021 in the expanded form as
64021 = 6 × 10000 + 4 × 1000 + 0 × 100 + 2 × 10 + 1 × 1
= 60000 + 4000 + 20 + 1
(c) We can express 578587 in the expanded form as
578587 = 5 × 100000 + 7 × 10000 + 8 × 1000 + 5 × 100 + 8 × 10 + 7 × 1
= 500000 + 70000 + 8000 + 500 + 80 + 7
(d) We can express 983198 in the expanded form as
983198 = 9 × 100000 + 8 × 10000 + 3 × 1000 + 1 × 100 + 9 × 10 + 8 × 1
= 900000 + 80000 + 3000 + 100 + 90 + 8
example 3: Write the numbers in their short form.
(a) 40000 + 8000 + 900 + 90 + 1 Quick Check
(b) 700000 + 30000 + 5000 + 100 + 20 + 8 Fill in the blanks.
(c) 800000 + 4000 + 600 + 30 + 2 1. 200000 + ______ + 100 +
(d) 600000 + 90000 + 7 60 + ____ = 250169
Solution: 2. 3 × 10000 + 7 × 1000 +
6 × 100 + 8 × 1 = ______
(a) 40000 + 8000 + 900 + 90 + 1 = 48,991
(b) 700000 + 30000 + 5000 + 100 + 20 + 8 = 7,35,128
(c) 800000 + 4000 + 600 + 30 + 2 = 8,04,632
(d) 600000 + 90000 + 7 = 6,90,007
teacher’s Explain to the students that zero is the only digit whose place value is always zero, irrespective of the place it
tip occupies in the number. For example, in 55077, the place value of 0 in the hundreds place is zero.
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