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92x98巧算
巧算
5X64X25X125
X98
=
答:
5X64X25X125
X98
=5X2X25X4X125X8
X98
=10X100X1000X98 =98000000
45
x98
54x2这道题
巧算
怎么做
答:
45
x98
+45x2 =45×(98+2)=45×100 =4500
102×98-2能
巧算
的要巧算
答:
102
x98
-2 =(100+2)x(100-2)-2 =10000-4-2 =9994 如有帮助请采纳,如对本题有疑问可追问,Good luck!
45乘以98加上90
巧算
怎么做
答:
45
x98
+90=45x100-45x2+90=4500-90+90=4500
35
x98
+70怎样
巧算
,急
答:
=35×2×49+70 =70×49+70 =70×(49+1)=70×50 =3500
13
x98
26.怎样
巧算
.用托式
答:
13
x98
+26 =13*98+13*2 =13*(98+2)=13*100 =1300
(3.4
x98
十98x4.6)x0.125怎么
巧算
答:
(3.4
x98
十98x4.6)x0.125怎么
巧算
=[98×(3.4+4.6)]×0.125 =98×10×0.125 =98×10×0.5×0.25 =2×49×10×0.5×0.25 =2×4×122.5×0.5×0.25 =2×0.5×4×0.25×122.5 =1×1×122.5 =122.5 详细就给个采纳呗 ...
17+13×98+9
巧算
?
答:
17十13
x98
十q =17十I3x(100一2)十9 =17十丨300一26十9 =17十9一26+l300 =26一26十1300 =l300
23+99+35
x98
怎么
巧算
?
答:
23+99+35
x98
=23+1+98+35x98 =24+36x99 =24+36x100-36 =3600-12 =3588 以上就是简便计算过程。
698
X98
十698X2简算?
答:
巧算
698×98+698×2 解题思路:四则运算规则(按顺序计算,先算乘除后算加减,有括号先算括号,有乘方先算乘方)即脱式运算(递等式计算)需在该原则前提下进行 解题过程:698×98+698×2 =698×(98+2)=698×100 =69800 存疑请追问,满意请采纳 ...
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