hlo guys
give me two magical mathematics trick which is simple and also useful.
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first 23×11=2. (3+2). 3
2. (5). 3
253
second 528×98 =. 528(100-2)
52800-1056
11754
2. (5). 3
253
second 528×98 =. 528(100-2)
52800-1056
11754
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