题目内容
用递等式计算.
(1)370×203-19266÷38
(2)32×3.1+1÷1.25
(3)
×(39÷35)÷0.9
(4)(9-3.06÷
)×1
(5)(3-1
+1
)×1
-3
×56
(6)[(
+0.075)÷
-2
]×
.
(1)370×203-19266÷38
(2)32×3.1+1÷1.25
(3)
| 21 |
| 26 |
(4)(9-3.06÷
| 3 |
| 5 |
| 3 |
| 13 |
(5)(3-1
| 1 |
| 8 |
| 1 |
| 7 |
| 8 |
| 13 |
| 1 |
| 56 |
(6)[(
| 37 |
| 40 |
| 3 |
| 25 |
| 17 |
| 24 |
| 2 |
| 15 |
(1)370×203-19266÷38,
=75110-507,
=74603;
(2)32×3.1+1÷1.25,
=9.92+0.8,
=10.72;
(3)
×(39÷35)÷0.9,
=
×
÷0.9,
=0.9÷0.9,
=1;
(4)(9-3.06÷
)×1
,
=(9-5.1)×1
,
=3.9×1
,
=4.8;
(5)(3-1
+1
)×1
-3
×56,
=3×56-1
×56+1
×56,
=168-49+64,
=119+64,
=183;
(6)[(
+0.075)÷
-2
]×
,
=[1÷
-2
]×
,
=[
-2
]×
,
=
×
,
=
.
=75110-507,
=74603;
(2)32×3.1+1÷1.25,
=9.92+0.8,
=10.72;
(3)
| 21 |
| 26 |
=
| 21 |
| 26 |
| 39 |
| 35 |
=0.9÷0.9,
=1;
(4)(9-3.06÷
| 3 |
| 5 |
| 3 |
| 13 |
=(9-5.1)×1
| 3 |
| 13 |
=3.9×1
| 3 |
| 13 |
=4.8;
(5)(3-1
| 1 |
| 8 |
| 1 |
| 7 |
| 8 |
| 13 |
| 1 |
| 56 |
=3×56-1
| 1 |
| 8 |
| 1 |
| 7 |
=168-49+64,
=119+64,
=183;
(6)[(
| 37 |
| 40 |
| 3 |
| 25 |
| 17 |
| 24 |
| 2 |
| 15 |
=[1÷
| 3 |
| 25 |
| 17 |
| 24 |
| 2 |
| 15 |
=[
| 25 |
| 3 |
| 17 |
| 24 |
| 2 |
| 15 |
=
| 135 |
| 24 |
| 2 |
| 15 |
=
| 3 |
| 4 |
练习册系列答案
相关题目