5.02-1.37-2.63=?简便运算
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5.02-1.37-2.63=?简便运算
5.02-1.37-2.63=?简便运算
5.02-1.37-2.63=?简便运算
5.02-1.37-2.63
=5.02-(1.37+2.63)
=5.02-4
=1.02
5.02-1.37-2.63=?简便运算
5.02-1.37-2.63=?简便运算
5.02-1.37-2.63=?简便运算
5.02-1.37-2.63
=5.02-(1.37+2.63)
=5.02-4
=1.02