六年级数学题(3道计算题)1.能简算的要简算7/10*3/7-5/6+7/10(14/9*29+58/9*29)*5/42.解方程5.6除以70%乘以X=5%就这些,
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![六年级数学题(3道计算题)1.能简算的要简算7/10*3/7-5/6+7/10(14/9*29+58/9*29)*5/42.解方程5.6除以70%乘以X=5%就这些,](/uploads/image/z/764370-18-0.jpg?t=%E5%85%AD%E5%B9%B4%E7%BA%A7%E6%95%B0%E5%AD%A6%E9%A2%98%283%E9%81%93%E8%AE%A1%E7%AE%97%E9%A2%98%EF%BC%891.%E8%83%BD%E7%AE%80%E7%AE%97%E7%9A%84%E8%A6%81%E7%AE%80%E7%AE%977%2F10%2A3%2F7-5%2F6%2B7%2F10%EF%BC%8814%2F9%2A29%2B58%2F9%2A29%EF%BC%89%2A5%2F42.%E8%A7%A3%E6%96%B9%E7%A8%8B5.6%E9%99%A4%E4%BB%A570%25%E4%B9%98%E4%BB%A5X%3D5%25%E5%B0%B1%E8%BF%99%E4%BA%9B%2C)
六年级数学题(3道计算题)1.能简算的要简算7/10*3/7-5/6+7/10(14/9*29+58/9*29)*5/42.解方程5.6除以70%乘以X=5%就这些,
六年级数学题(3道计算题)
1.能简算的要简算
7/10*3/7-5/6+7/10
(14/9*29+58/9*29)*5/4
2.解方程
5.6除以70%乘以X=5%
就这些,
六年级数学题(3道计算题)1.能简算的要简算7/10*3/7-5/6+7/10(14/9*29+58/9*29)*5/42.解方程5.6除以70%乘以X=5%就这些,
7/10*3/7-5/6+7/10
=3/10-5/6+7/10
=3/10+7/10-5/6
=1-5/6
=1/6
2.5.6/0.7x=1/20
8/x=1/20
x=20*8=160
或者:5.6x/0.7=1/20
8x=1/20
x=1/160
(因你没有说清x在分子还是在分母上,故有两种答案.)
7/10*3/7-5/6+7/10
=3/10-5/6+7/10
=3/10+7/10-5/6
=1-5/6
=1/6
?????????????????????????????????????????????????????????????????????????
7/10*3/7-5/6+7/10
=3/10-5/6+7/10
=3/10+7/10-5/6
=1-5/6
=1/6
(14/9*29+58/9*29)*5/4
=29(14/9+58/9)*5/4
=29*8*5/4
=290
5.6/70%X=5%
8X=5%
X=0.625%
第一题:=(3/7+1)*7/10-5/6
=10/7*7/10-5/6
=1-5/6
=1/6
二 :=
1/6
1.原式=7/10(1+3/7)-5/6
=7/10×10/7-5/6
=1-5/6
=1/6
6/0.7×x=0.05
解得x=7/1200
7/10*3/7-5/6+7/10
=3/10-5/6+7/10
=3/10+7/10-5/6
=1-5/6
=1/6
(14/9*29+58/9*29)*5/4
=29(14/9+58/9)*5/4
=29*8*5/4
=29*5*8/4
=29*5*2
=290
5.6/70%X=5%
5.6/0.7x=5%
8X=5%
X=0.625%