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计算下面各题,能简算的要简算.(1)(15+13)×15(2)47×59+37×59(3)13×516×35(4)2.5×97×0.4(5)1.25×97×8(6)1.25×32×2.5×97(7)0.36×101(8)0.36×98(9)57-59×57

题目详情
计算下面各题,能简算的要简算.
(1)(
1
5
+
1
3
)×15
(2)
4
7
×
5
9
+
3
7
×
5
9
(3)
1
3
×
5
16
×
3
5
(4)2.5×97×0.4 (5)1.25×97×8 (6)1.25×32×2.5×97
(7)0.36×101 (8)0.36×98 (9)
5
7
-
5
9
×
5
7
(10)
2
9
+
7
16
×
2
9
(11)
1
4
+
3
4
×
2
7
(12)
2
5
-
2
5
×
3
8
(13)90×
4
91
(14)86×
2
91
(15)
7
5
×
2
3
-
2
5
×
2
3
(16)0.36×101-0.36 (17)0.36×99+0.36 (18)
13
20
×
15
26
-
2
9
计算下面各题,能简算的要简算.
(1)(
1
5
+
1
3
)×15
(2)
4
7
×
5
9
+
3
7
×
5
9
(3)
1
3
×
5
16
×
3
5
(4)2.5×97×0.4 (5)1.25×97×8 (6)1.25×32×2.5×97
(7)0.36×101 (8)0.36×98 (9)
5
7
-
5
9
×
5
7
(10)
2
9
+
7
16
×
2
9
(11)
1
4
+
3
4
×
2
7
(12)
2
5
-
2
5
×
3
8
(13)90×
4
91
(14)86×
2
91
(15)
7
5
×
2
3
-
2
5
×
2
3
(16)0.36×101-0.36 (17)0.36×99+0.36 (18)
13
20
×
15
26
-
2
9
计算下面各题,能简算的要简算.
(1)(
1
5
+
1
3
)×15
(2)
4
7
×
5
9
+
3
7
×
5
9
(3)
1
3
×
5
16
×
3
5
计算下面各题,能简算的要简算.
(1)(
1
5
+
1
3
)×15

1
5
+
1
3
)×15
1
5
1155
1
3
)×15
1
3
1133(2)
4
7
×
5
9
+
3
7
×
5
9
4
7
×
5
9
+
3
7
×
5
9
4
7
4477
5
9
+
3
7
×
5
9
5
9
5599
3
7
×
5
9
3
7
3377
5
9
5
9
5599(3)
1
3
×
5
16
×
3
5
1
3
×
5
16
×
3
5
1
3
1133
5
16
×
3
5
5
16
551616
3
5
3
5
3355 (4)2.5×97×0.4 (5)1.25×97×8 (6)1.25×32×2.5×97 (4)2.5×97×0.4 (5)1.25×97×8 (6)1.25×32×2.5×97 (7)0.36×101 (8)0.36×98 (9)
5
7
-
5
9
×
5
7
(7)0.36×101 (8)0.36×98 (9)
5
7
-
5
9
×
5
7
5
7
-
5
9
×
5
7
5
7
5577
5
9
×
5
7
5
9
5599
5
7
5
7
5577 (10)
2
9
+
7
16
×
2
9
(11)
1
4
+
3
4
×
2
7
(12)
2
5
-
2
5
×
3
8
(10)
2
9
+
7
16
×
2
9
2
9
+
7
16
×
2
9
2
9
2299
7
16
×
2
9
7
16
771616
2
9
2
9
2299(11)
1
4
+
3
4
×
2
7
1
4
+
3
4
×
2
7
1
4
1144
3
4
×
2
7
3
4
3344
2
7
2
7
2277(12)
2
5
-
2
5
×
3
8
2
5
-
2
5
×
3
8
2
5
2255
2
5
×
3
8
2
5
2255
3
8
3
8
3388 (13)90×
4
91
(14)86×
2
91
(15)
7
5
×
2
3
-
2
5
×
2
3
(13)90×
4
91
4
91
4
91
449191(14)86×
2
91
2
91
2
91
229191(15)
7
5
×
2
3
-
2
5
×
2
3
7
5
×
2
3
-
2
5
×
2
3
7
5
7755
2
3
-
2
5
×
2
3
2
3
2233
2
5
×
2
3
2
5
2255
2
3
2
3
2233 (16)0.36×101-0.36 (17)0.36×99+0.36 (18)
13
20
×
15
26
-
2
9
(16)0.36×101-0.36(17)0.36×99+0.36(18)
13
20
×
15
26
-
2
9
13
20
×
15
26
-
2
9
13
20
13132020
15
26
-
2
9
15
26
15152626
2
9
2
9
2299
▼优质解答
答案和解析
(1)(15+13)×15,=15×15+13×15,=3+5,=8;(2)47×59+37×59,=(47+37)×59,=1×59,=59;(3)13×516×35,=13×35×516,=15×516,=116;(4)2.5×97×0.4,=(2.5×0.4)×97,=1×97,=97;(5)1...