计算:1.1+4.4+7.7+10.10+13.13+……+55.55+58.58原式=(1+4+7+10+13......+58)+(0.1+0.4+0.7)+(0.10+0.13……+0.55+0.58)=(1+58)*20/2+1.2+(0.10+0.58)* 17/2 =596.98

来源：学生作业帮助网 编辑：作业帮 时间：2024/11/19 13:37:43
计算:1.1+4.4+7.7+10.10+13.13+……+55.55+58.58原式=(1+4+7+10+13......+58)+(0.1+0.4+0.7)+(0.10+0.13……+0.55+0.58)=(1+58)*20/2+1.2+(0.10+0.58)* 17/2 =596.98
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计算:1.1+4.4+7.7+10.10+13.13+……+55.55+58.58原式=(1+4+7+10+13......+58)+(0.1+0.4+0.7)+(0.10+0.13……+0.55+0.58)=(1+58)*20/2+1.2+(0.10+0.58)* 17/2 =596.98
计算:1.1+4.4+7.7+10.10+13.13+……+55.55+58.58
原式=(1+4+7+10+13......+58)+(0.1+0.4+0.7)+(0.10+0.13……+0.55+0.58)
=(1+58)*20/2+1.2+(0.10+0.58)* 17/2 =596.98

计算:1.1+4.4+7.7+10.10+13.13+……+55.55+58.58原式=(1+4+7+10+13......+58)+(0.1+0.4+0.7)+(0.10+0.13……+0.55+0.58)=(1+58)*20/2+1.2+(0.10+0.58)* 17/2 =596.98
原式=1+0.1+4+0.4+7+0.7+……+58+0.58
=1+4+7+10+……+58+（0.1+0.4+0.7）+（0.10+0.13+0.16+……+0.55+0.58）
=（1+58）×20÷2+1.2+（0.10+0.58）×17÷2
=590+1.2+5.78
=598.98

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1.1+4.4+7.7+10.10+13.13+……+55.55+58.58
= (1.1+4.4+7.7) + (10.10+13.13+……+55.55+58.58)
= 13.2 + (58.58+10.10)(58.58-10.10) / 3.03/2
= 13.2 + (58.58+10.10)*(58-10)*1.01 / 3.03/2<...

全部展开

1.1+4.4+7.7+10.10+13.13+……+55.55+58.58
= (1.1+4.4+7.7) + (10.10+13.13+……+55.55+58.58)
= 13.2 + (58.58+10.10)(58.58-10.10) / 3.03/2
= 13.2 + (58.58+10.10)*(58-10)*1.01 / 3.03/2
= 13.2 + (58.58+10.10)*(58-10) / 3/2
= 13.2 + (58.58+10.10)*48 / 6
= 13.2 + (58.58+10.10)*8
= 13.2 + 68.68*8
= 13.2 + 548.44
= 561.64

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1.1+2.2+3.3+4.4+5.5+6.6+7.7+8.8+9.9=?用简略计算 9.9+(1.1-2.2)+(3.3-4.4)+(5.5-6.6)+(7.7-8.8)简便计算 4.4*0.25简便计算 1.1+2.2+3.3+4.4.+8.8+9.9用简便方法计算 计算 计算 计算 计算： 计算： 计算, 计算, 计算 计算 计算, 计算. 计算, 计算： 计算: