早教吧作业答案频道 -->其他-->
递等式计算,能巧算的用巧算.432-158-14225+0÷25371+369+(231+29)506-298+94500-121-79888-(88+177)
题目详情
递等式计算,能巧算的用巧算. 432-158-142 | 25+0÷25 | 371+369+(231+29) |
506-298+94 | 500-121-79 | 888-(88+177) |
▼优质解答
答案和解析
(1)432-158-142
=432-(158+142)
=432-300
=132;
(2)25+0÷25
=25+0
25;
(3)371+369+(231+29)
=(371+29)+(369+231)
=400+600
=1000;
(4)506-298+94
=506+94-298
=600-298
=600-300+2
=300+2
=302;
(5)500-121-79
=500-(121+79)
=500-200
=300;
(6)888-(88+177)
=888-88-177
=800-177
=623.
=432-(158+142)
=432-300
=132;
(2)25+0÷25
=25+0
25;
(3)371+369+(231+29)
=(371+29)+(369+231)
=400+600
=1000;
(4)506-298+94
=506+94-298
=600-298
=600-300+2
=300+2
=302;
(5)500-121-79
=500-(121+79)
=500-200
=300;
(6)888-(88+177)
=888-88-177
=800-177
=623.
看了 递等式计算,能巧算的用巧算....的网友还看了以下:
递等式计算(能巧算的要巧算)169+265+135125×23×8(817-891÷81)×141 2020-04-07 …
数式巧算11111+----+-----+-------+.+-----------------1 2020-04-26 …
(-1999)*2000分之1999 递等式 巧算 2020-05-16 …
9.9乘9.9加0.99递等式,巧算,一定要巧算!快点呀!!!!!!!!急!!!!!!!!!!! 2020-06-16 …
2700/45怎么递等式巧算要递等式巧算,急, 2020-06-16 …
270÷54的脱式巧算(用商不变的规律!) 2020-06-16 …
990×47除以33怎么用递等式巧算 2020-07-09 …
递等式,巧算是不是这样做的4.8*1.25=(4.8*8)/(1.25*8)=38.4/10=3. 2020-07-13 …
递等式计算,能巧算的用巧算.432-158-14225+0÷25371+369+(231+29)5 2020-07-18 …
递等式巧算25x6.4x1.25 2020-10-31 …