求1,2,3, 4 ,5 ,6, 详细解题步骤
1个回答
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(1)8-9+10-15-16-10
=8-9-15-16+(10-10)
=8-(9+15+16)+0
=8-40
=-32
(2)原式=-2/3-1/6+1/4-1/2
=-8/12-2/12-6/12+3/12
=-16/12+3/12
=-13/12
(3)原式=-3.78-4.05+6.17-5.43-2.14=6.17-(3.78+4.05+5.43+2.14)
=6.17-(7.83+7.57)
=6.17-15.4
=-9.23
(4)原式=3.56+3+5.5-2-5.25-4.56
=(3.56-4.56)+(3-2)+(5.5-5.25)
=-1+1+0.25
=0.25
(5)原式=6.6+24-18+4.8-16+18-6.8-3.2
=(18-18)+(24-16)+(6.6+4.8)-(6.8+3.2)=0+8+11.4-10
=8+1.4
=9.4
(6)原式=8+2.6+16+2
=10+16+2.6
=26+2.6
=28.6
答题不易,谢谢点击采纳为我点赞。
=8-9-15-16+(10-10)
=8-(9+15+16)+0
=8-40
=-32
(2)原式=-2/3-1/6+1/4-1/2
=-8/12-2/12-6/12+3/12
=-16/12+3/12
=-13/12
(3)原式=-3.78-4.05+6.17-5.43-2.14=6.17-(3.78+4.05+5.43+2.14)
=6.17-(7.83+7.57)
=6.17-15.4
=-9.23
(4)原式=3.56+3+5.5-2-5.25-4.56
=(3.56-4.56)+(3-2)+(5.5-5.25)
=-1+1+0.25
=0.25
(5)原式=6.6+24-18+4.8-16+18-6.8-3.2
=(18-18)+(24-16)+(6.6+4.8)-(6.8+3.2)=0+8+11.4-10
=8+1.4
=9.4
(6)原式=8+2.6+16+2
=10+16+2.6
=26+2.6
=28.6
答题不易,谢谢点击采纳为我点赞。
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