作业帮用简便方法计算1.25×37×4125×7×82.25×43×877×50×6
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/20 07:09:24
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用简便方法计算1.25×37×4125×7×82.25×43×877×50×6
用简便方法计算
1.25×37×4125×7×8
2.25×43×877×50×6
用简便方法计算1.25×37×4125×7×82.25×43×877×50×6
25×37×4125×7×8
=25×36×125×33×7×8+25×125×33×8×7
=900×1000×33×7+1000×25×32×7+1000×25×7
=29700000×7+5600000×7+25000×7
=30525000×7
=213675000
25×43×877×50×6
=25×44×877×50×6-25×877×50×6
=25×4×11×877×100×3-25×4×220×300+25×3×300
=289410000-6600000+22500
=282832500