脱式计算 14.35×5/8+62.5%×62.5%+5×5/8 4/15×8/11×(45×22) 1/2+1/6+1/12+...+1/9048/5-13/6+17/5-23/650×10.2-283.5÷27+50.05117÷36-3.56×0.451.26×7+1.35×3+1.26×33÷3/8-3/8÷3

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/08 18:33:25

脱式计算 14.35×5/8+62.5%×62.5%+5×5/8 4/15×8/11×(45×22) 1/2+1/6+1/12+...+1/9048/5-13/6+17/5-23/650×10.2-283.5÷27+50.05117÷36-3.56×0.451.26×7+1.35×3+1.26×33÷3/8-3/8÷3
脱式计算 14.35×5/8+62.5%×62.5%+5×5/8 4/15×8/11×(45×22) 1/2+1/6+1/12+...+1/90
48/5-13/6+17/5-23/6
50×10.2-283.5÷27+50.05
117÷36-3.56×0.45
1.26×7+1.35×3+1.26×3
3÷3/8-3/8÷3

脱式计算 14.35×5/8+62.5%×62.5%+5×5/8 4/15×8/11×(45×22) 1/2+1/6+1/12+...+1/9048/5-13/6+17/5-23/650×10.2-283.5÷27+50.05117÷36-3.56×0.451.26×7+1.35×3+1.26×33÷3/8-3/8÷3
脱式计算
14.35×5/8+62.5%×62.5%+5×5/8
=(14.35+62.5%+5)×5/8
=19.975×5/8
=12.484375
4/15×8/11×(45×22)
=(4/15×45)×(8/11×22)
=12×16
=192
1/2+1/6+1/12+...+1/90
=1-1/2+1/2-1/3+1/3-1/4+……+1/9-1/10
=1-1/10
=9/10
48/5-13/6+17/5-23/6
=(48/5+17/5)-(13/6+23/9)
=13-4
=9
50×10.2-283.5÷27+50.05
=510-10.5+50.05
=499.5+50.05
=549.55
117÷36-3.56×0.45
=3.25-1.602
=1.648
1.26×7+1.35×3+1.26×3
=1.26×(7+3)+4.05
=1.26×10+4.05
=12.6+4.05
=16.65
3÷3/8-3/8÷3
=8-1/8
=7又7/8

14.35×5/8+62.5%×62.5%+5×5/8
=(14.35+62.5%+5)×5/8
=19.975×5/8
=12.484375

4/15×8/11×(45×22)
=(4/15×45)×(8/11×22)
=12×16
=192

1/2+1/6+1/12+...+1/90
=1-1/2+...

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14.35×5/8+62.5%×62.5%+5×5/8
=(14.35+62.5%+5)×5/8
=19.975×5/8
=12.484375

4/15×8/11×(45×22)
=(4/15×45)×(8/11×22)
=12×16
=192

1/2+1/6+1/12+...+1/90
=1-1/2+1/2-1/3+1/3-1/4+……+1/9-1/10
=1-1/10
=9/10

48/5-13/6+17/5-23/6
=(48/5+17/5)-(13/6+23/9)
=13-4
=9

50×10.2-283.5÷27+50.05
=510-10.5+50.05
=499.5+50.05
=549.55

117÷36-3.56×0.45
=3.25-1.602
=1.648

1.26×7+1.35×3+1.26×3
=1.26×(7+3)+4.05
=1.26×10+4.05
=12.6+4.05
=16.65

3÷3/8-3/8÷3
=8-1/8
=7又7/8

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