题目内容
计算:
| 1.6×[1÷(2.1-2.09)] | 36÷[(
|
(2
| ||||||||||||
1÷[(8.5-4×
|
2.85×5
|
(1)1.6×[1÷(2.1-2.09)],
=1.6×[1÷0.01],
=1.6×100,
=160;
(2)36÷[(
-
)×3],
=36÷[
×3],
=36÷1.5,
=24;
(3)(2
-
)×(
÷
),
=2
×
,
=2
;
(4)1÷[(8.5-4×
)÷0.125],
=1÷[(8.5-3.5)÷0.125],
=1÷[5÷0.125],
=1÷40,
=
;
(5)2.85×5
+5.2×3.15+5.2,
=5.2×(2.85+3.15+1),
=5.2×7,
=36.4.
=1.6×[1÷0.01],
=1.6×100,
=160;
(2)36÷[(
| 5 |
| 6 |
| 1 |
| 3 |
=36÷[
| 1 |
| 2 |
=36÷1.5,
=24;
(3)(2
| 5 |
| 6 |
| 1 |
| 3 |
| 5 |
| 8 |
| 3 |
| 4 |
=2
| 1 |
| 2 |
| 5 |
| 6 |
=2
| 1 |
| 12 |
(4)1÷[(8.5-4×
| 7 |
| 8 |
=1÷[(8.5-3.5)÷0.125],
=1÷[5÷0.125],
=1÷40,
=
| 1 |
| 40 |
(5)2.85×5
| 1 |
| 5 |
=5.2×(2.85+3.15+1),
=5.2×7,
=36.4.
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