fzt73009-2021

容品腾5094201*201 - 202x198简便运算 -
厍响茜15543423014 ______ 201*201-202x198简便运算 201*201-202x198 =201*201-201*198-198 =201*(201-198)-198 =201*3-198 =405

容品腾5094简便计算以下各题,要求过程. 672 - 198+328 - 147 - 202+196 - 253+404 7500 - 248 - 173 - 569 - 127 - 552 - 100 - 31 - 200 6033 - 496 - (238+762) - 1004 - 152 - 148
厍响茜15543423014 ______ 简便计算以下各题,要求过程. 672-198+328-147-202+196-253+404=(672+328)+(196+404)-[(147+253)+(198+202)]=1000 + 600 -[ 400+ 400]= 1600 - 800=8007500-248-173-569-127-552-100-31-2007500-248-173-569-127-552-100-31-200=...

容品腾5094478 - 202简便计算 -
厍响茜15543423014 ______ 478-202简便计算 478-202 =478-200-2 =278-2 =276

容品腾5094用奥数算501+498 - 397 - 202 -
厍响茜15543423014 ______ 501+498-397-202=501+498+1-1-397-202=(501+498+1)-(1+397+202)=1000-600=400

容品腾5094571 - 202的简便运算 -
厍响茜15543423014 ______ 571-202的简便运算 =571一200一2 =371一2 =369

容品腾5094500 - 202怎么简便计算 -
厍响茜15543423014 ______ 500-202怎么简便计算 =500-200-2 =300-2 =298

容品腾5094569 - 202.怎样简便运算? -
厍响茜15543423014 ______ 解:569-202等于( 367 ) ∵已知需求出569-202等于多少 X - Y = Z ∴569 - 202 = (600 - 31)- (200 + 2) = 600 - 31 - 200 - 2 = (600 - 200)+(-31 - 2) = 400 - 33 = 367 答:569-202等于367

容品腾5094估算701 - 202的结果约是几 -
厍响茜15543423014 ______ 估算701-202的结果约是几701-202≈500 把701看成700202看成200700-200=500

容品腾5094323减202简便计算 -
厍响茜15543423014 ______ 323减202简便计算=323-200-2=123-2=121