2. Estimate the following by rounding off both the numbers to the nearest thousands with full method
a. 825 + 932
b. 15,794 +4,293
c. 3,796 - 882 d. 47,105 + 34,809
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a. 1000+1000=2000
b. 16000+4000=2000
C. 4000-1000=3000
D.47000+35000=82000
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