9.63-7.52-2.49+0.432000-1998+1996-1994+…-6+4-212×(0.875×12.4+1+4.4×78)×43-14[1-(112+12+110)×212]÷1125.-数学
题文
|
题文
|
题型:解答题 难度:中档
答案
(1)9.63-7.52-2.49+0.43, =(9.63+0.43)-(7.52+2.49), =10.06-10.01, =0.05; (2)2000-1998+1996-1994+…-6+4-2, =++…+(8-6)+(4-2), =2×500, =1000; (3)
=
=
=
=
=
=
上一篇:12345678912-1234567890×12345678921+2+3+4+…+99+100+99+…+4+3+2+1=______.-数学
下一篇:1×1-2×2+3×3-4×4+5×5-6×6+…-100×100+101×101.-数学
零零教育社区:论坛热帖子
|