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（79-13）×（79+23）；66×（811+533+722）；334×0.75+6.25×75%；23×15+76÷5+20%．
题目详情
（
-
）×（
+
）； 66×（
+
+
）； 3
×0.75+6.25×75%； 23×
+76÷5+20%．
-
）×（
+
）； 66×（
+
+
）； 3
×0.75+6.25×75%； 23×
+76÷5+20%．
7 7 9 9
）×（
+
）； 66×（
+
+
）； 3
×0.75+6.25×75%； 23×
+76÷5+20%．
1 1 3 3
+
）； 66×（
+
+
）； 3
×0.75+6.25×75%； 23×
+76÷5+20%．
7 7 9 9
）； 66×（
+
+
）； 3
×0.75+6.25×75%； 23×
+76÷5+20%．
2 2 3 3
+
+
）； 3
×0.75+6.25×75%； 23×
+76÷5+20%．
8 8 11 11
+
）； 3
×0.75+6.25×75%； 23×
+76÷5+20%．
5 5 33 33
）； 3
×0.75+6.25×75%； 23×
+76÷5+20%．
7 7 22 22
×0.75+6.25×75%； 23×
+76÷5+20%．
3 3 4 4
+76÷5+20%．
1 1 5 5
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▼优质解答
答案和解析
（1）（
-
）×（
+
）；
=
×
=
；
（2）66×（
+
+
）
=66×
+66×
+66×
=48+10+21
=79；
（3）3
×0.75+6.25×75%
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
+76÷5+20%
=23×
+76×
+
=（23+76+1）×
=100×
=20．
7 7 79 9 9-
）×（
+
）；
=
×
=
；
（2）66×（
+
+
）
=66×
+66×
+66×
=48+10+21
=79；
（3）3
×0.75+6.25×75%
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
+76÷5+20%
=23×
+76×
+
=（23+76+1）×
=100×
=20．
1 1 13 3 3）×（
+
）；
=
×
=
；
（2）66×（
+
+
）
=66×
+66×
+66×
=48+10+21
=79；
（3）3
×0.75+6.25×75%
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
+76÷5+20%
=23×
+76×
+
=（23+76+1）×
=100×
=20．
7 7 79 9 9+
）；
=
×
=
；
（2）66×（
+
+
）
=66×
+66×
+66×
=48+10+21
=79；
（3）3
×0.75+6.25×75%
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
+76÷5+20%
=23×
+76×
+
=（23+76+1）×
=100×
=20．
2 2 23 3 3）；
=
×
=
；
（2）66×（
+
+
）
=66×
+66×
+66×
=48+10+21
=79；
（3）3
×0.75+6.25×75%
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
+76÷5+20%
=23×
+76×
+
=（23+76+1）×
=100×
=20．
4 4 49 9 9×
=
；
（2）66×（
+
+
）
=66×
+66×
+66×
=48+10+21
=79；
（3）3
×0.75+6.25×75%
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
+76÷5+20%
=23×
+76×
+
=（23+76+1）×
=100×
=20．
13 13 139 9 9
=
；
（2）66×（
+
+
）
=66×
+66×
+66×
=48+10+21
=79；
（3）3
×0.75+6.25×75%
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
+76÷5+20%
=23×
+76×
+
=（23+76+1）×
=100×
=20．
52 52 5281 81 81；
（2）66×（
+
+
）
=66×
+66×
+66×
=48+10+21
=79；
（3）3
×0.75+6.25×75%
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
+76÷5+20%
=23×
+76×
+
=（23+76+1）×
=100×
=20．
8 8 811 11 11+
+
）
=66×
+66×
+66×
=48+10+21
=79；
（3）3
×0.75+6.25×75%
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
+76÷5+20%
=23×
+76×
+
=（23+76+1）×
=100×
=20．
5 5 533 33 33+
）
=66×
+66×
+66×
=48+10+21
=79；
（3）3
×0.75+6.25×75%
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
+76÷5+20%
=23×
+76×
+
=（23+76+1）×
=100×
=20．
7 7 722 22 22）
=66×
+66×
+66×
=48+10+21
=79；
（3）3
×0.75+6.25×75%
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
+76÷5+20%
=23×
+76×
+
=（23+76+1）×
=100×
=20．
8 8 811 11 11+66×
+66×
=48+10+21
=79；
（3）3
×0.75+6.25×75%
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
+76÷5+20%
=23×
+76×
+
=（23+76+1）×
=100×
=20．
5 5 533 33 33+66×
=48+10+21
=79；
（3）3
×0.75+6.25×75%
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
+76÷5+20%
=23×
+76×
+
=（23+76+1）×
=100×
=20．
7 7 722 22 22
=48+10+21
=79；
（3）3
×0.75+6.25×75%
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
+76÷5+20%
=23×
+76×
+
=（23+76+1）×
=100×
=20．
3 3 34 4 4×0.75+6.25×75%
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
+76÷5+20%
=23×
+76×
+
=（23+76+1）×
=100×
=20．
1 1 15 5 5+76÷5+20%
=23×
+76×
+
=（23+76+1）×
=100×
=20．
1 1 15 5 5+76×
+
=（23+76+1）×
=100×
=20．
1 1 15 5 5+
=（23+76+1）×
=100×
=20．
1 1 15 5 5
=（23+76+1）×
=100×
=20．
1 1 15 5 5
=100×
=20．
1 1 15 5 5
=20．
| 7 |
| 9 |
| 1 |
| 3 |
| 7 |
| 9 |
| 2 |
| 3 |
=
| 4 |
| 9 |
| 13 |
| 9 |
=
| 52 |
| 81 |
（2）66×（
| 8 |
| 11 |
| 5 |
| 33 |
| 7 |
| 22 |
=66×
| 8 |
| 11 |
| 5 |
| 33 |
| 7 |
| 22 |
=48+10+21
=79；
（3）3
| 3 |
| 4 |
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
| 1 |
| 5 |
=23×
| 1 |
| 5 |
| 1 |
| 5 |
| 1 |
| 5 |
=（23+76+1）×
| 1 |
| 5 |
=100×
| 1 |
| 5 |
=20．
| 7 |
| 9 |
| 1 |
| 3 |
| 7 |
| 9 |
| 2 |
| 3 |
=
| 4 |
| 9 |
| 13 |
| 9 |
=
| 52 |
| 81 |
（2）66×（
| 8 |
| 11 |
| 5 |
| 33 |
| 7 |
| 22 |
=66×
| 8 |
| 11 |
| 5 |
| 33 |
| 7 |
| 22 |
=48+10+21
=79；
（3）3
| 3 |
| 4 |
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
| 1 |
| 5 |
=23×
| 1 |
| 5 |
| 1 |
| 5 |
| 1 |
| 5 |
=（23+76+1）×
| 1 |
| 5 |
=100×
| 1 |
| 5 |
=20．
| 1 |
| 3 |
| 7 |
| 9 |
| 2 |
| 3 |
=
| 4 |
| 9 |
| 13 |
| 9 |
=
| 52 |
| 81 |
（2）66×（
| 8 |
| 11 |
| 5 |
| 33 |
| 7 |
| 22 |
=66×
| 8 |
| 11 |
| 5 |
| 33 |
| 7 |
| 22 |
=48+10+21
=79；
（3）3
| 3 |
| 4 |
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
| 1 |
| 5 |
=23×
| 1 |
| 5 |
| 1 |
| 5 |
| 1 |
| 5 |
=（23+76+1）×
| 1 |
| 5 |
=100×
| 1 |
| 5 |
=20．
| 7 |
| 9 |
| 2 |
| 3 |
=
| 4 |
| 9 |
| 13 |
| 9 |
=
| 52 |
| 81 |
（2）66×（
| 8 |
| 11 |
| 5 |
| 33 |
| 7 |
| 22 |
=66×
| 8 |
| 11 |
| 5 |
| 33 |
| 7 |
| 22 |
=48+10+21
=79；
（3）3
| 3 |
| 4 |
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
| 1 |
| 5 |
=23×
| 1 |
| 5 |
| 1 |
| 5 |
| 1 |
| 5 |
=（23+76+1）×
| 1 |
| 5 |
=100×
| 1 |
| 5 |
=20．
| 2 |
| 3 |
=
| 4 |
| 9 |
| 13 |
| 9 |
=
| 52 |
| 81 |
（2）66×（
| 8 |
| 11 |
| 5 |
| 33 |
| 7 |
| 22 |
=66×
| 8 |
| 11 |
| 5 |
| 33 |
| 7 |
| 22 |
=48+10+21
=79；
（3）3
| 3 |
| 4 |
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
| 1 |
| 5 |
=23×
| 1 |
| 5 |
| 1 |
| 5 |
| 1 |
| 5 |
=（23+76+1）×
| 1 |
| 5 |
=100×
| 1 |
| 5 |
=20．
| 4 |
| 9 |
| 13 |
| 9 |
=
| 52 |
| 81 |
（2）66×（
| 8 |
| 11 |
| 5 |
| 33 |
| 7 |
| 22 |
=66×
| 8 |
| 11 |
| 5 |
| 33 |
| 7 |
| 22 |
=48+10+21
=79；
（3）3
| 3 |
| 4 |
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
| 1 |
| 5 |
=23×
| 1 |
| 5 |
| 1 |
| 5 |
| 1 |
| 5 |
=（23+76+1）×
| 1 |
| 5 |
=100×
| 1 |
| 5 |
=20．
| 13 |
| 9 |
=
| 52 |
| 81 |
（2）66×（
| 8 |
| 11 |
| 5 |
| 33 |
| 7 |
| 22 |
=66×
| 8 |
| 11 |
| 5 |
| 33 |
| 7 |
| 22 |
=48+10+21
=79；
（3）3
| 3 |
| 4 |
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
| 1 |
| 5 |
=23×
| 1 |
| 5 |
| 1 |
| 5 |
| 1 |
| 5 |
=（23+76+1）×
| 1 |
| 5 |
=100×
| 1 |
| 5 |
=20．
| 52 |
| 81 |
（2）66×（
| 8 |
| 11 |
| 5 |
| 33 |
| 7 |
| 22 |
=66×
| 8 |
| 11 |
| 5 |
| 33 |
| 7 |
| 22 |
=48+10+21
=79；
（3）3
| 3 |
| 4 |
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
| 1 |
| 5 |
=23×
| 1 |
| 5 |
| 1 |
| 5 |
| 1 |
| 5 |
=（23+76+1）×
| 1 |
| 5 |
=100×
| 1 |
| 5 |
=20．
| 8 |
| 11 |
| 5 |
| 33 |
| 7 |
| 22 |
=66×
| 8 |
| 11 |
| 5 |
| 33 |
| 7 |
| 22 |
=48+10+21
=79；
（3）3
| 3 |
| 4 |
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
| 1 |
| 5 |
=23×
| 1 |
| 5 |
| 1 |
| 5 |
| 1 |
| 5 |
=（23+76+1）×
| 1 |
| 5 |
=100×
| 1 |
| 5 |
=20．
| 5 |
| 33 |
| 7 |
| 22 |
=66×
| 8 |
| 11 |
| 5 |
| 33 |
| 7 |
| 22 |
=48+10+21
=79；
（3）3
| 3 |
| 4 |
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
| 1 |
| 5 |
=23×
| 1 |
| 5 |
| 1 |
| 5 |
| 1 |
| 5 |
=（23+76+1）×
| 1 |
| 5 |
=100×
| 1 |
| 5 |
=20．
| 7 |
| 22 |
=66×
| 8 |
| 11 |
| 5 |
| 33 |
| 7 |
| 22 |
=48+10+21
=79；
（3）3
| 3 |
| 4 |
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
| 1 |
| 5 |
=23×
| 1 |
| 5 |
| 1 |
| 5 |
| 1 |
| 5 |
=（23+76+1）×
| 1 |
| 5 |
=100×
| 1 |
| 5 |
=20．
| 8 |
| 11 |
| 5 |
| 33 |
| 7 |
| 22 |
=48+10+21
=79；
（3）3
| 3 |
| 4 |
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
| 1 |
| 5 |
=23×
| 1 |
| 5 |
| 1 |
| 5 |
| 1 |
| 5 |
=（23+76+1）×
| 1 |
| 5 |
=100×
| 1 |
| 5 |
=20．
| 5 |
| 33 |
| 7 |
| 22 |
=48+10+21
=79；
（3）3
| 3 |
| 4 |
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
| 1 |
| 5 |
=23×
| 1 |
| 5 |
| 1 |
| 5 |
| 1 |
| 5 |
=（23+76+1）×
| 1 |
| 5 |
=100×
| 1 |
| 5 |
=20．
| 7 |
| 22 |
=48+10+21
=79；
（3）3
| 3 |
| 4 |
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
| 1 |
| 5 |
=23×
| 1 |
| 5 |
| 1 |
| 5 |
| 1 |
| 5 |
=（23+76+1）×
| 1 |
| 5 |
=100×
| 1 |
| 5 |
=20．
| 3 |
| 4 |
=3.75×0.75+6.25×0.75
=0.75×（3.75+6.25）
=0.75×10
=7.5；
（4）23×
| 1 |
| 5 |
=23×
| 1 |
| 5 |
| 1 |
| 5 |
| 1 |
| 5 |
=（23+76+1）×
| 1 |
| 5 |
=100×
| 1 |
| 5 |
=20．
| 1 |
| 5 |
=23×
| 1 |
| 5 |
| 1 |
| 5 |
| 1 |
| 5 |
=（23+76+1）×
| 1 |
| 5 |
=100×
| 1 |
| 5 |
=20．
| 1 |
| 5 |
| 1 |
| 5 |
| 1 |
| 5 |
=（23+76+1）×
| 1 |
| 5 |
=100×
| 1 |
| 5 |
=20．
| 1 |
| 5 |
| 1 |
| 5 |
=（23+76+1）×
| 1 |
| 5 |
=100×
| 1 |
| 5 |
=20．
| 1 |
| 5 |
=（23+76+1）×
| 1 |
| 5 |
=100×
| 1 |
| 5 |
=20．
| 1 |
| 5 |
=100×
| 1 |
| 5 |
=20．
| 1 |
| 5 |
=20．
看了 （79-13）×（79+23...的网友还看了以下：
(3+5/7-2/3)×(1/5+1/7+1/13)-(1/5-1/7+1/13)×3+(1/5+ 2020-04-27 …
、按一定规律排列的一串数：1/1,-1/3,2/3,-3/3,1/5,-2/5,3/5,-4/5, 2020-05-14 …
关于一道数学题化简|2x+1|-|x-5|设2x+1=0,x-5=0x=-1/2,x=5当x＜-1 2020-05-17 …
1/1乘3+1/3乘5..+1/（2n-1)(2n+1）=?想问为甚要除以二?上述得出的规律都不用 2020-07-13 …
盐焗鸡的售价18元/斤是根据什么计算出来的1只白鸡（去毛及内脏后）按1.8斤计算，进价每斤5.5元 2020-07-16 …
0.39+1/5+39/100+4/5=1/2-（5/6-3/8）=8/19-6/19+1/107 2020-07-17 …
1.0.3:12=2.0.25:4=3.2.8:0.7=4.2.1:1.2=5.0.1:0.8=6 2020-07-17 …
1.-1/3+15.5+(-2/3)2.-11.5+4.53.1/7-2/54.4.7-3.4-（ 2020-07-19 …
方程1/x-7-1/x-5-1/x-6-1/x-4的解是x=11/2,而7+5+6+4/4=11/ 2020-07-31 …
计算下面各题5/14x7+1/24/9÷12+4/279/10-3/10×5/6填一填（）×2=1/ 2020-10-31 …