3.5×6.8+0.68+6.8×6.4脱式计算

3.5×6.8+0.68+6.8×6.4脱式计算

3.5×6.8+0.68+6.8×6.4脱式计算
=3.5x6.8+6.8x0.1+6.8x6.4
=(3.5+0.1+6.4)x6.8
=10x6.8
=68
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第1个回答  2017-09-17
解:
3.5×6.8+0.68+6.8×6.4
=3.5×6.8+0.1×6.8+6.8×6.4
=6.8×(3.5+0.1+6.4)
=6.8×10
=68本回答被网友采纳