口算大王:5/3+0.72=? 11/8除以4= 20乘以20% = 2--7/3+7/4 2.4乘以0.1%= 13除
口算大王:5/3+0.72=? 11/8除以4= 20乘以20% = 2--7/3+7/4 2.4乘以0.1%= 13除
=3乘以2乘以1,=4乘以3乘以2乘以1,=5乘以4乘以3乘以2乘以1,那么100!除以99!
27046=2乘以( )+7乘以( )+4乘以( )+6乘以( )
1/2乘以3/4乘以5/6乘以7/8`````乘以99/100=?就是1乘到99的奇数除以2到100的偶数拉 感激不尽啊
观察1乘以2乘以3乘以4+1=25=5² 2乘以3乘以4乘以5+1=121=11²
1015乘以3= 71乘以10= 876乘以4= 14 816除以4= 38+15= 101乘以5= 1169乘以3=
1+2乘以3除以4+5+6除以7=1 添括号
2乘以3乘以5乘以7乘以11乘以13乘以17除以(2004-2)等于多少 巧算、要巧算.
1除以(1乘以2乘以3)加上1除以(2乘以4乘以3)加上1除以(3乘以4乘以5)加上.1除以(8乘以9乘以10)
1+2乘以3+4乘以5+6乘以7+8乘以9=1005 在上面各式当中添上适当的括号使等式成立
分数简算 3/4乘以16= 12除以3/5= 0.3乘以5/6= 1除以7/8=
3/2除以1/4乘以4/15除以16 8/9除以(1/4+5/6乘以3/5) =