uate the following:
600 + (-6)
[(-25) - (-7)] = [(-2) - (
fy that a = (b + c) = (a +
a = 48, b = 4 and c = -2
n the blanks.
23 +
= -1
product of two number
ract the quotient of 10
Answers
Answer:
(a) 730+998
Rounding of to nearest hundred
730\Rightarrow700 and 998\Rightarrow1,000
730+998\ \Rightarrow\ 700+1,000
= 1,700
(b) 796-314
Rounding of to nearest hundered
796\Rightarrow800\ \ and\ \ 314\Rightarrow300
796-314\ \Rightarrow\ 800-300
= 500
(c) 12,904+2,888
Rounding off to nearest thousand
12,904\Rightarrow13,000\ \ and\ \ 2,888\Rightarrow3,000\ 12,904+2,888\ \Rightarrow\ 13,000+3,000
= 16,000
(d) 28,292-21,496
Rounding off to nearest thousand
28,292\Rightarrow28,000\ \ and\ \ 21,496\Rightarrow21,000
28,292-21,496\ \Rightarrow\ 28,000-21,000
= 7,000
10 more examples :-
Example 1:
1,246+5,822\ \Rightarrow\ 1,200+6,000\ =\ 7,200
Example 2:
333+737\ \Rightarrow\ 300+700\ =\ 1,000
Example 3:
23,489-13,503\ \Rightarrow\ 23,000-14,000\ =\ 9,000
Example 4:
11,307-10,312\Rightarrow\ 11,000-10,000\ =\ 1,000
Example 5:
213-189\ \Rightarrow\ 200-200\ =\ 0
Example 6:
9,853+9,999\ \Rightarrow\ 10,000+10,000\ =\ 20,000
Example 7:
5,703+5,431\Rightarrow\ 6,000+5,000\ =\ 11,000
Example 8:
6,423-3,610\ \Rightarrow\ 6,000-4,000\ =\ 2,000
Example 9:
2,876+9,559\ \Rightarrow\ 3,000+10,000\ =\ 13,000
Example 10:
4,639-2,990\ \Rightarrow\ 5,000-3,000\ =\ 2,000