11个回答
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(1)43-(25+24÷223 ),
=43-(25+24÷83),
=43-(25+24×38),
=43-25-9,
=43-9-25,
=34-25,
=3335;
(2)(310×0.87+0.23×310)÷3%,
=310×(0.87+0.23)÷3100,
=310×1.1×1003,
=310×1003×1.1,
=10×1.1,
=11;
(3)32×3031+131,
=(31+1)×3031+131,
=31×3031+3031+131,
=30+1,
=31;
(4)3.59-1.81-0.19-0.59,
=(3.59-0.59)-(1.81+0.19),
=3-2,
=1.
=43-(25+24÷83),
=43-(25+24×38),
=43-25-9,
=43-9-25,
=34-25,
=3335;
(2)(310×0.87+0.23×310)÷3%,
=310×(0.87+0.23)÷3100,
=310×1.1×1003,
=310×1003×1.1,
=10×1.1,
=11;
(3)32×3031+131,
=(31+1)×3031+131,
=31×3031+3031+131,
=30+1,
=31;
(4)3.59-1.81-0.19-0.59,
=(3.59-0.59)-(1.81+0.19),
=3-2,
=1.
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展开全部
(1)43-(25+24÷223 ),
=43-(25+24÷83),
=43-(25+24×38),
=43-25-9,
=43-9-25,
=34-25,
=3335;
(2)(310×0.87+0.23×310)÷3%,
=310×(0.87+0.23)÷3100,
=310×1.1×1003,
=310×1003×1.1,
=10×1.1,
=11;
(3)32×3031+131,
=(31+1)×3031+131,
=31×3031+3031+131,
=30+1,
=31;
(4)3.59-1.81-0.19-0.59,
=(3.59-0.59)-(1.81+0.19),
=3-2,
=1.
=43-(25+24÷83),
=43-(25+24×38),
=43-25-9,
=43-9-25,
=34-25,
=3335;
(2)(310×0.87+0.23×310)÷3%,
=310×(0.87+0.23)÷3100,
=310×1.1×1003,
=310×1003×1.1,
=10×1.1,
=11;
(3)32×3031+131,
=(31+1)×3031+131,
=31×3031+3031+131,
=30+1,
=31;
(4)3.59-1.81-0.19-0.59,
=(3.59-0.59)-(1.81+0.19),
=3-2,
=1.
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(1)43-(25+24÷223 ),
=43-(25+24÷83),
=43-(25+24×38),
=43-25-9,
=43-9-25,
=34-25,
=3335;
(2)(310×0.87+0.23×310)÷3%,
=310×(0.87+0.23)÷3100,
=310×1.1×1003,
=310×1003×1.1,
=10×1.1,
=11;
(3)32×3031+131,
=(31+1)×3031+131,
=31×3031+3031+131,
=30+1,
=31;
(4)3.59-1.81-0.19-0.59,
=(3.59-0.59)-(1.81+0.19),
=3-2,
=1.
=43-(25+24÷83),
=43-(25+24×38),
=43-25-9,
=43-9-25,
=34-25,
=3335;
(2)(310×0.87+0.23×310)÷3%,
=310×(0.87+0.23)÷3100,
=310×1.1×1003,
=310×1003×1.1,
=10×1.1,
=11;
(3)32×3031+131,
=(31+1)×3031+131,
=31×3031+3031+131,
=30+1,
=31;
(4)3.59-1.81-0.19-0.59,
=(3.59-0.59)-(1.81+0.19),
=3-2,
=1.
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3.59X38
3.59X(40一2)
二143.6一7.18
=7.18
3.59X(40一2)
二143.6一7.18
=7.18
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3.59ⅹ38
=(3.6-0.01)×(40-2)
=3.6×40-0.01×40-3.6×2+0.01×2
=144-0.4-7.2+0.02
=144-7.58
=136.42
=(3.6-0.01)×(40-2)
=3.6×40-0.01×40-3.6×2+0.01×2
=144-0.4-7.2+0.02
=144-7.58
=136.42
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