早教吧作业答案频道 -->其他-->
用简便方法计算.329×10154×98+46×983000÷125800÷25(125×25)×857×15+42×15+15.
题目详情
用简便方法计算. 329×101 | 54×98+46×98 | 3000÷125 |
800÷25 | (125×25)×8 | 57×15+42×15+15. |
▼优质解答
答案和解析
(1)329×101,
=329×(100+1),
=329×100+329×1,
=32900+329,
=33229;
(2)54×98+46×98,
=(54+46)×98,
=100×98,
=9800;
(3)3000÷125,
=(3000×8)÷(125×8),
=24000÷1000,
=24;
(4)800÷25,
=(800×4)÷(25×4),
=3200÷100,
=32;
(5)(125×25)×8,
=125×8×25,
=1000×25,
=25000;
(6)57×15+42×15+15,
=(57+42+1)×15,
=100×15,
=1500.
=329×(100+1),
=329×100+329×1,
=32900+329,
=33229;
(2)54×98+46×98,
=(54+46)×98,
=100×98,
=9800;
(3)3000÷125,
=(3000×8)÷(125×8),
=24000÷1000,
=24;
(4)800÷25,
=(800×4)÷(25×4),
=3200÷100,
=32;
(5)(125×25)×8,
=125×8×25,
=1000×25,
=25000;
(6)57×15+42×15+15,
=(57+42+1)×15,
=100×15,
=1500.
看了 用简便方法计算.329×10...的网友还看了以下:
23+19=640-450=96÷3=44+49=80÷8=99÷9=84÷4=85+28=7.3 2020-04-07 …
口算.0.46-0.06=3.7+4.3=1+0.55=4.6-1.8=0.65+0.32=10- 2020-04-07 …
帮我破解下这串数字什么意思9(2)4(3)6(2)2(1)4(3)3(1)4(3)9(1)6(3) 2020-05-17 …
求帮助:1,2,3,4,5,6,7,8,9用加和减要等于100java实现例如输出:1+2+34- 2020-07-16 …
根据下列各式,求x:y的值:(1)3/x=4/y(2)x-y/y=2/3(3)x+y/5=x/2( 2020-07-18 …
485-(6×4+32)(45-17)+(9-3)437-5×85×9-102×9-105×6-3 2020-07-18 …
直接写出得数6.3÷9=4.2÷2.1=8-2.6=4×1.5=0.32+0.8=1.7+0.25= 2020-11-19 …
福建行测真题数字推理:2,4,6,9,13,19()选项:A.28B.29C.30D.312+4+6 2020-11-21 …
能简则简.(1)3/4+3/4÷3(2)1/3÷1/2-5/4x2/5(3)4/9÷[5/9-能简则 2020-11-26 …
在()填上大于小于或等于。①2/3÷9()9②2/3×3()2/9÷2③5÷3()5×1/3在()填 2021-02-05 …