(69.9-4.74-5.16)*6.5怎么简便计算

gugu1122022-10-04 11:39:542条回答

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枣椰树ss了 共回答了23个问题 | 采纳率95.7%
(69.9-4.74-5.16)*6.5
=(69.9-(4.74+5.16))*6.5
=(69.9-9.9)*6.5
=60*6.5
=60*6+60*0.5
=360+30
=390
1年前
马元元 共回答了21806个问题 | 采纳率
=[69.9-(4.74+5.16)]*6.5
=(69.9-9.9)*6.5
=60*6.5
=390
1年前

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(69.9-4.74-5.16)*6.5
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390
用简便方法计算 (69.9-4.74-5.16)×6.5 [3.5+(15-1.5)]×7.6 13.75-(3.75+
用简便方法计算 (69.9-4.74-5.16)×6.5 [3.5+(15-1.5)]×7.6 13.75-(3.75+6.48) 3.68+7.56-2.68
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shirley0066 共回答了19个问题 | 采纳率78.9%
(69.9-4.74-5.16)×6.5
=(69.9-9.9)×6.5
=60×6.5
=390
[3.5+(15-1.5)]×7.6
=(3.5+15-1.5)×7.6
=17×7.6
=129.2
13.75-(3.75+6.48)
=13.75-3.75-6.48
=10-6.48
=3.52
3.68+7.56-2.68
=3.68-2.68+7.56
=1+7.56
=8.56