Estimate the answer of the following with rounding-off technique to the nearest 100.Do not give the actual answer.

(a) 9867+5200


(b) 8652 - 2510


(c) 6328 +1100


(d) 2311 - 1111


(e) 5632-2110



Estimate the answer of the following with rounding-off technique to the nearest 10.Do not give the actual answer.

(a) 622+521


(b) 112+521


(c) 220 - 120


(d) 987 - 655


(e) 555 - 254




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