132+456+168-156用简便方法和789+648-189-248 43×7+157×7 101×76-76 (57+57+57+57)×25 99×54+54
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/23 19:32:46
![132+456+168-156用简便方法和789+648-189-248 43×7+157×7 101×76-76 (57+57+57+57)×25 99×54+54](/uploads/image/z/1968865-25-5.jpg?t=132%2B456%2B168-156%E7%94%A8%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%E5%92%8C789%2B648-189-248+43%C3%977%2B157%C3%977+101%C3%9776-76+%EF%BC%8857%2B57%2B57%2B57%EF%BC%89%C3%9725+99%C3%9754%2B54)
132+456+168-156用简便方法和789+648-189-248 43×7+157×7 101×76-76 (57+57+57+57)×25 99×54+54
132+456+168-156用简便方法
和789+648-189-248 43×7+157×7 101×76-76 (57+57+57+57)×25 99×54+54
132+456+168-156用简便方法和789+648-189-248 43×7+157×7 101×76-76 (57+57+57+57)×25 99×54+54
132+456+168-156
=(132+168)+(456-156)
=300+300
=600