能简算的要简算1.2-0.5×1.8÷0.9 &...
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解决时间 2021-01-24 23:43
- 提问者网友:感性作祟
- 2021-01-24 14:56
能简算的要简算1.2-0.5×1.8÷0.9 8×7×护矗篙匪蕻睹戈色恭姬1.2535×8.8+1.2×35+60%[15×(50%+13)]÷58.
最佳答案
- 五星知识达人网友:往事埋风中
- 2021-01-24 15:51
(1)1.2-0.5×1.8÷0.9
=1.2-0.5×(1.8÷0.9),
=1.2-0.5×2,
=1.2-1,
=0.2;
(2)8×7×1.25
=8×1.25×7,
=10×7,
=70;
(3)35×8.8+1.2×35+60%,
=0.6×8.8+1.2×0.6+0.6,
=(1.2+8.8)×06+0.6,
=10×0.6+0.6,
=6+0.6,
=6.6.
(4)[15×(50%+13)]÷58,
=[15×0.5+15×13]×85,
=[7.5+5]×85,
=12.5×85,
=20.
=1.2-0.5×(1.8÷0.9),
=1.2-0.5×2,
=1.2-1,
=0.2;
(2)8×7×1.25
=8×1.25×7,
=10×7,
=70;
(3)35×8.8+1.2×35+60%,
=0.6×8.8+1.2×0.6+0.6,
=(1.2+8.8)×06+0.6,
=10×0.6+0.6,
=6+0.6,
=6.6.
(4)[15×(50%+13)]÷58,
=[15×0.5+15×13]×85,
=[7.5+5]×85,
=12.5×85,
=20.
全部回答
- 1楼网友:枭雄戏美人
- 2021-01-24 16:34
想将1.8和0.9约分,即原式=1.2-0.5×2=1.2-1=0.2
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