b) Find the values of 325, 1251 and 161.
Answers
Step-by-step explanation:
(a)578\times161
Rounding off using general rule
578\Rightarrow600\ \ and\ \ 161\Rightarrow200
So, 600\times200\ =\ 1,20,000
(b) 5,281\times3,491
Rounding off using general rule
5,281\Rightarrow5,000\ \ and\ \ 3,491\Rightarrow3,000
So, 5,000\times3,000\ =\ 1,50,00,000
(c) 1,291\times592
Rounding off using general rule
1,291\Rightarrow1,300\ \ and\ \ 592\Rightarrow600
So, 1,300\times600\ =\ 7,80,000
(d) 9,250\times29
Rounding off using general rule
9,250\Rightarrow9,000\ \ and\ \ 29\Rightarrow30
So, 9,000\times30\ =\ 2,70,000
Four more such examples:
Example 1: 391\times561\ \Rightarrow400\times600\ =2,40,000
Example 2: 1,125\times2,307\ \Rightarrow1,100\times2,300\ =\ 25,30,000
Example 3:
54\times3,019\ \Rightarrow50\times3,000\ =\ 1,50,000
Example 4:
3,858\times7,682\ \Rightarrow4,000\times8,000\ =\ 3,20,00,000
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Step-by-step explanation:
325 value of three hundred and five
1251 value of one thousand two hundred and fifty one
161 value of one hundred and sixty one