ʦ꼶ѧѧĩԾ
ʱ:60 :100 :
һһһ(33)
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3. 17һ,Լ1,1700ĴһԼ( )ס A.1 B.10 C.100 4.ĸ,ֻһ( ) A.5120 B.2000 C.3005
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ġһһ㡣(16) 1.һ㡣(4)
170-70= 40+500= 62+18= 1000-400= 800+20= 44+35= 203= 2600-600= 2.һʽ㡣(Ҫ)(12) 344= 419=
塢һᶯ֡(8)
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2.ڵͼϻһֱǡһ۽Ǻһǡ(6)
ܰСҵԵļ?ÿԱдСѵ֡(4)
600-532= 195+207=
ѧУĶϷ,ƼƼѧУ,ѧУϷƼƼҵĶǶ,ƼƼҵüҡ
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ߡߵ۳ëߵ¼(7)
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1.ڸװ,ÿ4ӡ30,װ(4)
2.(12)
(1)ССɻ58Ԫ,СԪ?
(2)СС,һҪԪ?
(3)̴700Ԫ,?
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