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几道数学计算题,0-(-64)-(+43)+(-49)-(+15)(-2)+3+6+(-3)+2+(-4)(+6.1)-(-4.3)+(+2.1)-5.73.54+(-3.72)-(-15.46)-(+5.28)(-121.3)+(-78.5)-(8又2分之1)(-121.3)(-39又19分之18)*(-15)-15*43+(-15)*21-(-15)*1
题目详情
几道数学计算题,
0-(-64)-(+43)+(-49)-(+15)
(-2)+3+6+(-3)+2+(-4)
(+6.1)-(-4.3)+(+2.1)-5.7
3.54+(-3.72)-(-15.46)-(+5.28)
(-121.3)+(-78.5)-(8又2分之1)(-121.3)
(-39又19分之18)*(-15)
-15*43+(-15)*21-(-15)*164
-1的2次方-[2-(-3)的2次方]*|1/5-1/3|/(-1/10)
全部都要写过程,写了的再加10分,
0-(-64)-(+43)+(-49)-(+15)
(-2)+3+6+(-3)+2+(-4)
(+6.1)-(-4.3)+(+2.1)-5.7
3.54+(-3.72)-(-15.46)-(+5.28)
(-121.3)+(-78.5)-(8又2分之1)(-121.3)
(-39又19分之18)*(-15)
-15*43+(-15)*21-(-15)*164
-1的2次方-[2-(-3)的2次方]*|1/5-1/3|/(-1/10)
全部都要写过程,写了的再加10分,
▼优质解答
答案和解析
1:0-(-64)-(+43)+(-49)-(+15)
=0+64-43-49-15
= 21-49-15
=6-49
=-43
(-2)+3+6+(-3)+2+(-4)
=-2+3+6-3+2-4
=1+6-7+2
=2
(+6.1)-(-4.3)+(+2.1)-5.7
=6.1+4.3+2.1-5.7
=10.4+2.1-5.7
=12.5-5.7
=6.8
3.54+(-3.72)-(-15.46)-(+5.28)
=3.54-3.72+15.46-5.28
=19-9
=10
(-39又19分之18)*(-15)
=-759/19*-15
=11385/19
-15*43+(-15)*21-(-15)*164
=-645-315+2460
=1500
-1的2次方-[2-(-3)的2次方]*|1/5-1/3|/(-1/10)
=1-(-7)*(2/15)/-0.1
=1-28/3
=-25/3
=0+64-43-49-15
= 21-49-15
=6-49
=-43
(-2)+3+6+(-3)+2+(-4)
=-2+3+6-3+2-4
=1+6-7+2
=2
(+6.1)-(-4.3)+(+2.1)-5.7
=6.1+4.3+2.1-5.7
=10.4+2.1-5.7
=12.5-5.7
=6.8
3.54+(-3.72)-(-15.46)-(+5.28)
=3.54-3.72+15.46-5.28
=19-9
=10
(-39又19分之18)*(-15)
=-759/19*-15
=11385/19
-15*43+(-15)*21-(-15)*164
=-645-315+2460
=1500
-1的2次方-[2-(-3)的2次方]*|1/5-1/3|/(-1/10)
=1-(-7)*(2/15)/-0.1
=1-28/3
=-25/3
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