作业帮简便计算.1.2.6*0.25+7.4除以4= 2.89.3*43+3.8*893+8.93*190= 3.0.7777*0.7+0.1111*2.1=
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/04 00:53:27
简便计算.1.2.6*0.25+7.4除以4= 2.89.3*43+3.8*893+8.93*190= 3.0.7777*0.7+0.1111*2.1=
简便计算.1.2.6*0.25+7.4除以4= 2.89.3*43+3.8*893+8.93*190= 3.0.7777*0.7+0.1111*2.1=
简便计算.1.2.6*0.25+7.4除以4= 2.89.3*43+3.8*893+8.93*190= 3.0.7777*0.7+0.1111*2.1=
1.2.6x0.25+7.4÷4
=2.6x0.25+7.4x0.25
=(2.6+7.4)x0.25
=10x0.25
=2.5
2.89.3x43+3.8x893+8.93x190
=8.93x430+8.93x380+8.93x190
=8.93x(430+380+190)
=8.93x1000
=8930
3.0.7777*0.7+0.1111*2.1
=0.7777x0.7+0.7777x0.3
=0.7777x(0.7+0.3)
=0.7777x1
=0.7777
1 2.6×0.25+7.4÷4
=2.6×1/4+7.4×1/4
=（2.6+7.4）×1/4
=10×1/4
=5/2
2 89.3×43+3.8×893×8.93×190
=89.3×43+38×89.3×89.3×19
=89.3×（43+38+19）
=89.3×100
=8930...
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1 2.6×0.25+7.4÷4
=2.6×1/4+7.4×1/4
=（2.6+7.4）×1/4
=10×1/4
=5/2
2 89.3×43+3.8×893×8.93×190
=89.3×43+38×89.3×89.3×19
=89.3×（43+38+19）
=89.3×100
=8930
3 0.7777×0.7+0.1111×2.1
=0.1111×4.9+0.1111×2.1
=0.1111×（4.9+2.1）
=0.1111×7
=0.7777
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1. 2.6*0.25+7.4除以4
=2.6*0.25+7.4*0.25
=(2.6+7.4)*0.25
=10*0.25
=2.5
2.89.3*43+3.8*893+8.93*190
= 893*4.3+3.8*893+893*1.9
=893*(4.3+3.8+1.9)
=893*10
=89.3
3. 0....
全部展开
1. 2.6*0.25+7.4除以4
=2.6*0.25+7.4*0.25
=(2.6+7.4)*0.25
=10*0.25
=2.5
2.89.3*43+3.8*893+8.93*190
= 893*4.3+3.8*893+893*1.9
=893*(4.3+3.8+1.9)
=893*10
=89.3
3. 0.7777*0.7+0.1111*2.1
=0.1111*7*0.7+0.1111*2.1
=0.1111*(4.9+2.1)
=0.1111*7
=0.7777
希望能帮到你，祝更上一层楼O(∩_∩)O
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