发布网友 发布时间:2024-04-21 19:52
共1个回答
热心网友 时间:2024-12-12 21:22
9解:1.027 ÷ 0.79
= (1×1000 + 27)/1000 ÷ 79/100
= 1027/1000 ÷ 79/100
= 1027/1000 × 100/79
= 1027/1000 × 1000/790
= 1027/790
= 13/10
= 1.3
0.79+6.18÷0.15
=0.79+41.2
=41.99
6.8除以0.75除以0.51怎么计算
6.8除以0.75除以0.51
=
结果不是有限小数
核实资料
79 ÷ 65 ÷ 79 x 65
=(79 ÷ 79) x (65 ÷ 65)
=1 x 1
=1
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26
解:
832÷8÷4
=(800+32)÷(8×4)
=800÷32+1
=200÷8+1
=25+1
=26
816÷8÷6
=102÷6
=17
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600÷10+120÷6
=60+20
=80
【速算】
85除以40
=(80+5)÷40
=2+1÷8
=2.125
565除以80
=(560+5)÷80
=7+1÷16
=7.0625
30÷0.75÷16x10
=30x100/75x1/16X10
=(30X100X1X10)/(75X16) --------分子与分母约分
=25
18400/(1000x)/2=10
18400/2000x=10
18400=20000x
x=18400/20000
x=23/25