8×6.5+(8×3+6.5×3)×2-17计算过程?
3个回答
展开全部
8×6.5+(8×3+6.5×3)×2-17
=8×6.5+24×2+6.5×3×2-17
=6.5×(8+6)+48-17
=6.5×2×7+31
=13×7+31
=91+31
=122
=8×6.5+24×2+6.5×3×2-17
=6.5×(8+6)+48-17
=6.5×2×7+31
=13×7+31
=91+31
=122
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展开全部
=52+(24+19.5)×2-17
=52+43.5×2-17
=52+87一17
=52+(87-17)
=52+70
=122
=52+43.5×2-17
=52+87一17
=52+(87-17)
=52+70
=122
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