(1/2-1/6)×5+1/4×4/5 11/28×8/33+13/14×25/26 4(1/2-1/6)×5+1/4×4/5 11/28×8/33+13/14×25/264/7×5/8-2/21×3/41/2×1/3+1/15×(3/4-1/8)7/12-3/24×5×12/156/7+3/4×5/6×2/7能简算的要简算?
来源:学生作业学帮网 编辑:学帮网 时间:2024/05/20 17:30:30
(1/2-1/6)×5+1/4×4/5 11/28×8/33+13/14×25/26 4
(1/2-1/6)×5+1/4×4/5
11/28×8/33+13/14×25/26
4/7×5/8-2/21×3/4
1/2×1/3+1/15×(3/4-1/8)
7/12-3/24×5×12/15
6/7+3/4×5/6×2/7
能简算的要简算?
(1/2-1/6)×5+1/4×4/5=1/3×5+1/5=5/3+1/5=28/15
11/28×8/33+13/14×25/26=2/21+25/28=83/84
4/7×5/8-2/21×3/4=5/14-1/14=2/7
1/2×1/3+1/15×(3/4-1/8)=1/6+1/15×5/8=1/6+1/24=5/24
7/12-3/24×5×12/15=7/12-1/2=1/12
6/7+3/4×5/6×2/7=6/7+5/28=29/28
简算:1/1*2+1/2*3+1/3*4+1/4*5+1/5*6
巧算:(1+1/2+1/3+1/4+1/5)*(1/2+1/3+1/4+1/5+1/6)-(1+1/2+1/3+1/4+1/5+1/6)*(1/2+1/3+1/4+1/5)(1+1/2+1/3+1/4+1/5)*(1/2+1/3+1/4+1/5+1/6)-(1+1/2+1/3+1/4+1/5+1/6)*(1/2+1/3+1/4+1/5)=====
[2^4+1/4)(4^4+1/4)(6^4+1/4)(8^4+1/4)(10^4+1/4)】/[1^4+1/4)(3^4+1/4)(5^4+1/4)(7^4+1/4)(9^4+1/4)]
1+1+2+1+2+6+4+5+8等于
2×3/1+3×4/1+4×5/1+5×6/1+.199×200/1=?
1+6+6+8+4+2+6+6+5+4+4+1+4+7+45
(-2/1)X3/4除(-5/4)X(-6/5)
1+2+3+4+5+6+78
1+2+3+4+5+6+.1000
1 2 3 4 5 6 题
1/2/3/4/5/6题
1+2-3+4-5+6=
3+2+1+4+5+6
1、2、3、4、5、6、答案
1,2,3,4,5,6,
1、2、3、4、5、6、7
1,2,3,4,5,6,7,
1,2,3,4,5,6,