2.6×7.4加0.26×25加0.026×10简便运算

来源:学生作业帮助网 编辑:六六作业网 时间:2024/05/25 12:53:32
2.6×7.4加0.26×25加0.026×10简便运算2.6×7.4加0.26×25加0.026×10简便运算2.6×7.4加0.26×25加0.026×10简便运算2.6×7.4+0.26×25+

2.6×7.4加0.26×25加0.026×10简便运算
2.6×7.4加0.26×25加0.026×10简便运算

2.6×7.4加0.26×25加0.026×10简便运算
2.6×7.4+0.26×25+0.026×10
=0.26×74+0.26×25+0.26×1
=0.26×(74+25+1)
=0.26×100
=26

化成:26乘(0.74+0.25+0.01)=26

原式=2.6*7.4+2.6*2.5+2.6*0.1
=2.6*(7.4+2.5+0.1)
=2.6*10
=26