作业帮简便计算：7×16.5+24.7×78.6+24.7×4.9=3200÷125÷8=
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/17 09:33:11
简便计算：7×16.5+24.7×78.6+24.7×4.9=3200÷125÷8=
简便计算：7×16.5+24.7×78.6+24.7×4.9=
3200÷125÷8=
简便计算：7×16.5+24.7×78.6+24.7×4.9=3200÷125÷8=
24.7×16.5+24.7×78.6+24.7×4.9
=24.7×(16.5+78.6+4.9)
=24.7×100
=2470
3200÷125÷8
=3200÷(125×8)
=3200÷1000
=3.2
24.7×16.5+24.7×78.6+24.7×4.9
=24.7×(16.5+78.6+4.9)
=24.7×100
=2470
3200÷125÷8
=3200÷(125×8)
=3200÷1000
=3.2
明白请采纳，有疑问请追问！
有新问题请求助，谢谢！
24.7×16.5+24.7×78.6+24.7×4.9
=(16.5+78.6+4.9)×24.7
=100×24.7
=2470
3200÷125÷8
=3200÷(125×8)
=3200÷1000
=3.2
24.7×16.5+24.7×78.6+24.7×4.9
=24.7×(16.5+×78.6+4.9)
=24.7×100
=2470
3200÷125÷8
=3200÷(125×8)
=3200÷1000
=3.2
满意请采纳答案，不懂可追问。谢谢！
=24.7*（16.5+78.5+4.9）
=24.7*(95+4.9)
=24.7*(100-0.5)
=24.7*100-24.7*0.5
=2470-12.35
=2457.65