题目内容
用简便方法计算.
88.88×11.11+44.44×77.78.
88.88×11.11+44.44×77.78.
88.88×11.11+44.44×77.78,
=22.22×44.44+44.44×77.78,
=(22.22+77.78)×44.44,
=100×44.44,
=4444;
=22.22×44.44+44.44×77.78,
=(22.22+77.78)×44.44,
=100×44.44,
=4444;
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