早教吧作业答案频道 -->数学-->
用你喜欢的方法计算下列各题:125×103-125×32700-425-175125×8825×7×432+26+74+16863×25+25×3799×32+3225×4448×213-13×4841+127+59+1731300÷25÷4156×l0l-156.
题目详情
用你喜欢的方法计算下列各题:
|
▼优质解答
答案和解析
(1)125×103-125×3 =125×(103-3) =125×100 =12500; (2)2700-425-175 =2700-(425+175) =2700-600 =2100; (3)125×88 =125×8×11 =1000×11 =11000; (4)25×7×4 =25×4×7 =100×7 =700; (5)32+26+74+168 =32+168+(26+74) =200+100 =300; (6)63×25+25×37 =(63+37)×25 =100×25 =2500; (7)99×32+32 =(99+1)×32 =100×32 =3200; (8)25×44 =25×4×11 =100×11 =1100; (9)48×213-13×48 =48×(213-13) =48×200 =9600; (10)41+127+59+173 =41+59+(173+127) =100+300 =400; (11)1300÷25÷4 =1300÷(25×4) =1300÷100 =13; (12)156×l0l-156 =156×(l0l-1) =156×l00 =15600. |
看了 用你喜欢的方法计算下列各题:...的网友还看了以下:
1/2+3/4+7/8+15/16+31/32+63/64+127/128+255/2651/2+ 2020-06-06 …
115砖墙1m3砖的用量=127*0.5/0.115*(1+2%)=563.22块请问127*0. 2020-06-19 …
填空并写出数列的通项公式1,3,7,,31,,127;2,5,,17,26,,50;1/2,-1/ 2020-06-27 …
把一张纸连续对折七次,打开后共有多少条折痕?我算的是127,怎么又听人说是128.127是按照规律 2020-07-08 …
解不定方程127x-52y+1=0我自己算出来了,用辗转相除法求通解原方程等于127x-52y=- 2020-07-17 …
判断以下地址是否能用作主机IP地址,为什么?a.131.107.256.80:b.222.222. 2020-07-17 …
1,3,5,7,15,31,(),(本人得出结论为1+3+5-2=71+3+5+7-1=151+3 2020-07-18 …
巧算各题1/2008+2/2008+3/2008+…+2006/2008+2007/2008=1/ 2020-07-19 …
1/2+3/4+7/8+15/16+31/32+63/64+127/128+255/256用简便方 2020-07-19 …
signdechar为什么能表示的数据范围是-2^7至2^7-1也就是说为什么是-128至127那 2020-07-21 …