Adding by rounding is making the terms simpler. Turn 5.3 to 5, remember that 0.3 was subtracted. Turn 1.76 to 2, remember 0.14 was added. Turn 4.079 to 4, remember 0.079 was subtracted.
5+2+4=11
Now the three numbers:
0.3+0.079-0.14=0.239
11+0.239=11.239
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138
364 plus 166 equals 530.
The answer depends on the extent of rounding. To the nearest 100 it is 529950.
The answer is 1166.
530% = 530/100 or 53/10 in fraction