cross out the digits to get a total. And put a zero for the crossed digits.( A )111 + 3 3 3 + 555+ 777 + 999 =11 11 (b) 1111 + 3 3 3 + 555+ 77 7+ 999= 2101.
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(a) 111+999=1100
,333+777=1100,
555+999=1554
,333+777=1100,
555+999=1554
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