上面写不下,我写在下面填符号1.(1)1/2(）0.4()3/10()0.1=1(2)1/2()0.4()3/10()1/5()0.1()=102.(1)0.3()0.3()0.3()0.3()0.3=0(2)0.3()0.3()0.3()0.3()0.3=1(3)0.3()0.3()0.3()0.3()0.3=2(4)0.3()0.3()0.3()0.3()0.3=43.(1)0

Question

上面写不下,我写在下面
填符号1.(1)1/2( ）0.4( )3/10( )0.1=1 (2)1/2( )0.4( )3/10( )1/5( )0.1( )=10 2.(1)0.3( )0.3( )0.3( )0.3( )0.3=0 (2)0.3( )0.3( )0.3( )0.3( )0.3=1 (3)0.3( )0.3( )0.3( )0.3( )0.3=2 (4)0.3( )0.3( )0.3( )0.3( )0.3=4 3.(1)0.2( )0.2( )0.2( )0.2( )0.2=3 (2)0.2( )0.2( )0.2( )0.2( )0.2=5 (3)0.2( )0.2( )0.2( )0.2( )0.2=6 (4)0.2( )0.2( )0.2( )0.2( )0.2=7
填符号1.(1)1/2( ）0.4( )3/10( ) 0.1=1 (2)1/2( )0.4( )3/10( )1/5( )0.1( )=10 2.(1)0.3( )0.3( )0.3( )0.3( )0.3=0 (2)0.3( )0.3( )0.3( )0.3( )0.3=1 (3)0.3( )0.3( )0.3( )0.3( )0.3=2 (4)0.3( )0.3( )0.3( )0.3( )0.3=4 3.(1)0.2( )0.2( )0.2( )0.2( )0.2=3 (2)0.2( )0.2( )0.2( )0.2( )0.2=5 (3)0.2( )0.2( )0.2( )0.2( )0.2=6 (4)0.2( )0.2( )0.2( )0.2( )0.2=7

Answer 1

1.(1) 1/2*0.4/(3/10-0.1)=1
(2) 1/2/(0.4-3/10)*1/5/0.1=10
2.(1) 0.3*(0.3-0.3)*0.3*0.3=0
(2) 0.3*(0.3-0.3)+0.3/0.3=1
(3) 0.3-0.3+(0.3+0.3)/0.3=2
(4) (0.3+0.3+0.3+0.3)/0.3=4
3.(1) 0.2/0.2+(0.2+0.2)/0.2=3
(2) 0.2-0.2+0.2/0.2/0.2=5
(3) 0.2/0.2/0.2+0.2/0.2=6
(4) (0.2/0.2+0.2+0.2)/0.2=7
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