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负99又23分之22乘69 拆项后用乘法分配律

椅天看月 1年前 已收到3个回答 我来回答 举报

Fahrenheit83 幼苗

共回答了26个问题采纳率:92.3% 向TA提问 举报

负99又23分之22乘69
=-(99+22/23)×69
=-99×69-(22/23)×69
=-99×69-66
=-99×(66+3)-66
=-99×66-66-99×3
=-66×(99+1)-(100-1)×3
=-6600-300+3
=-6897

1年前

7

gcslax68 幼苗

共回答了97个问题 向TA提问 举报

-99又23分之22*69=-(99+22/23)69=-(99*69+22/23*23*3)
=-(6831+66) =6897

1年前

1

laochang301 幼苗

共回答了23个问题 向TA提问 举报

-99又23分之22乘69
=-(100-1/23)*69
=-6900+1/23*69
=-6900+3
=-6897
如觉得正确,希望采纳

1年前

0
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