六年级数学计算题
能简便的要简算1.98.6-7分之3+11.4-7分之42.15分之4÷(9分之13-3分之2×6分之5)3.(3分之1+4分之1)-(4分之1-5分之)-(5分之1-6...
能简便的要简算
1.98.6-7分之3+11.4-7分之4 2.15分之4÷(9分之13-3分之2×6分之5)
3.(3分之1+4分之1)-(4分之1-5分之)-(5分之1-6分之1)
4.(0.75×121-4分之3×20-4分之3)÷0.75 展开
1.98.6-7分之3+11.4-7分之4 2.15分之4÷(9分之13-3分之2×6分之5)
3.(3分之1+4分之1)-(4分之1-5分之)-(5分之1-6分之1)
4.(0.75×121-4分之3×20-4分之3)÷0.75 展开
4个回答
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1.98.6-7分之3+11.4-7分之4
=98.6+11.4-(3/7+4/7)
=110-1
=109
2.15分之4÷(9分之13-3分之2×6分之5)
=4/15÷﹙13/9-2/3×5/6﹚
=4/15÷﹙13/9-5/9﹚
=4/15÷8/9
=4/15×9/8
=3/10
3.(3分之1+4分之1)-(4分之1-5分之)-(5分之1-6分之1)
=1/3+1/4-1/4+1/5-1/5+1/6
=1/3+1/6
=1/2
4.(0.75×121-4分之3×20-4分之3)÷0.75
=(0.75×121-0.75×20-0.75)÷0.75
=0.75×(121-20-1)÷0.75
=0.75÷0.75×100
=100
=98.6+11.4-(3/7+4/7)
=110-1
=109
2.15分之4÷(9分之13-3分之2×6分之5)
=4/15÷﹙13/9-2/3×5/6﹚
=4/15÷﹙13/9-5/9﹚
=4/15÷8/9
=4/15×9/8
=3/10
3.(3分之1+4分之1)-(4分之1-5分之)-(5分之1-6分之1)
=1/3+1/4-1/4+1/5-1/5+1/6
=1/3+1/6
=1/2
4.(0.75×121-4分之3×20-4分之3)÷0.75
=(0.75×121-0.75×20-0.75)÷0.75
=0.75×(121-20-1)÷0.75
=0.75÷0.75×100
=100
展开全部
1.98.6-7分之3+11.4-7分之4
=(98.6+11.4)-(3/7+4/7)
=110-1
=109
2.15分之4÷(9分之13-3分之2×6分之5)
=4/15÷(13/9-2/3*5/6)
=4/15÷(13/9-5/9)
=4/15*9/8
=3/10
3.(3分之1+4分之1)-(4分之1-5分之)-(5分之1-6分之1)
=(1/3+1/4)-(1/4-1/5)-(1/5-1/6)
=1/3+1/6
=1/2
4.(0.75×121-4分之3×20-4分之3)÷0.75
=0.75*121÷0.75-3/4*20÷0.75-3/4÷0.75
=121-20-1
=100
=(98.6+11.4)-(3/7+4/7)
=110-1
=109
2.15分之4÷(9分之13-3分之2×6分之5)
=4/15÷(13/9-2/3*5/6)
=4/15÷(13/9-5/9)
=4/15*9/8
=3/10
3.(3分之1+4分之1)-(4分之1-5分之)-(5分之1-6分之1)
=(1/3+1/4)-(1/4-1/5)-(1/5-1/6)
=1/3+1/6
=1/2
4.(0.75×121-4分之3×20-4分之3)÷0.75
=0.75*121÷0.75-3/4*20÷0.75-3/4÷0.75
=121-20-1
=100
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1.98.6-3/7+11.4-4/7
=98.6+11.4-(3/7+4/7)
=110-1
=109
2.4/15÷(13/9-2/3×5/6)
=4/15÷﹙13/9-2/3×5/6﹚
=4/15÷﹙13/9-5/9﹚
=4/15÷8/9
=4/15×9/8
=3/10
3.(1/3+1/4)-(1/4-1/5)-(1/5-1/6
)
=1/3+1/4-1/4+1/5-1/5+1/6
=1/3+1/6
=1/2
4.(0.75×121-4分之3×20-4分之3)÷0.75
=(0.75×121-0.75×20-0.75)÷0.75
=0.75×(121-20-1)÷0.75
=0.75÷0.75×100
=100
=98.6+11.4-(3/7+4/7)
=110-1
=109
2.4/15÷(13/9-2/3×5/6)
=4/15÷﹙13/9-2/3×5/6﹚
=4/15÷﹙13/9-5/9﹚
=4/15÷8/9
=4/15×9/8
=3/10
3.(1/3+1/4)-(1/4-1/5)-(1/5-1/6
)
=1/3+1/4-1/4+1/5-1/5+1/6
=1/3+1/6
=1/2
4.(0.75×121-4分之3×20-4分之3)÷0.75
=(0.75×121-0.75×20-0.75)÷0.75
=0.75×(121-20-1)÷0.75
=0.75÷0.75×100
=100
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1.(98.6+11.4)-(3/7+4/7)
=110-1=109
=110-1=109
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