发布网友 发布时间:2024-10-23 20:54
共5个回答
热心网友 时间:2024-11-03 00:41
1560-(1819+560)
=1560-1819-560
=1560-560-1819
=1000-1819
=-819
101*58=(100+1)*58=100*58-1*58=5800-58=5742
402*25=(400+2)*25=400*25+2*25=10000+50=10050
125*=125*8*8=1000*8=8000
热心网友 时间:2024-11-03 00:40
1560减括号1819+560括号简便运算101×58简便运算402×25简便运算125×简便?
1560减括号1819+560括号
=1560-1819-560
=1000-1819
=-819
101×58
=(100+1)x58
=5800+58
=5858
402×25
125x
参照第二题,自己动动脑做做吧,不会再问我。
热心网友 时间:2024-11-03 00:43
1560-(1819+560)
=1560-1819-560
=1000-1819
=-819
101×58
=(100+1)×58
=100×58+1×58
=5800+58
=5858
402×25
=(400+2)×25
=400×25+2×25
=10000+50
=10050
125×
=125×(8×8)
=125×8×8
=1000×8
=8000
热心网友 时间:2024-11-03 00:42
①1560一(1819+560)
=1560一560一1819
=1000一1819
=一819
②101×58
=100×58+1×58
=5800+58
=5858
③402×25
=400×25+2×25
=10000+50
=10050
④125×
=125×8×8
=1000×8
=8000
热心网友 时间:2024-11-03 00:43
1560-(1819+560)
=1560-560-1819
=1000-1819
=-819
101×58=100×58+58=5858
402×25=400×25+2×25=1000+50=1050
125×=125×8×8=1000×8=8000