计算:12×45+15×28+30×26+60×11=______.
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/14 09:53:17
计算:12×45+15×28+30×26+60×11=______.
![计算:12×45+15×28+30×26+60×11=______.](/uploads/image/z/17232892-52-2.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A12%C3%9745%2B15%C3%9728%2B30%C3%9726%2B60%C3%9711%3D______%EF%BC%8E)
12×45+15×28+30×26+60×11
=36×15+15×28+15×52+15×44
=(36+28+52+44)×15
=160×15
=2400
=36×15+15×28+15×52+15×44
=(36+28+52+44)×15
=160×15
=2400
计算:3.6×42.3×3.75-12.5×0.423×28=______.
计算:38.3×7.6+11×9.25+427×0.24=______.
计算:121×0.13+12.1×0.9-12×1.21=______.
计算:153°19′42″+26°40′28″=______.
计算:1+3+5+7+9+11+13+15+17+19+21+23=______.
11+12+13+14+15=______×______.
计算:5002-499×501=______.
计算:1232-122×124=______.
计算:1001×1001-1001=______.
简便计算:101×99=______.
计算:888×999=______.
计算:lg2+lg5=______.