题目内容
3÷〔9×(
-
)〕×12
93.6÷〔(6-2.88)×(5
-1.875)〕
7.05×37+64×7.05-7.05
(2
×
+2
×6.2-5.8×2
-
÷
)×
8
÷〔7.8+
×(2.75+1.25)〕
8.1÷(4
-0.05×70)÷1
.
| 1 |
| 27 |
| 1 |
| 36 |
93.6÷〔(6-2.88)×(5
| 7 |
| 8 |
7.05×37+64×7.05-7.05
(2
| 2 |
| 9 |
| 4 |
| 5 |
| 2 |
| 9 |
| 2 |
| 9 |
| 1 |
| 5 |
| 9 |
| 20 |
| 9 |
| 20 |
8
| 4 |
| 5 |
| 1 |
| 4 |
8.1÷(4
| 1 |
| 7 |
| 2 |
| 7 |
(1)3÷[9×(
-
)]×12,
=3÷[9×
-
×9]×12,
=3÷[
-
]×12,
=3÷
×12,
=36×12,
=432;
(2)93.6÷[(6-2.88)×(5
-1.875)],
=93.6÷[3.12×4],
=93.6÷12.48,
=7.5;
(3)7.05×37+64×7.05-7.05,
=7.05×(37+64-1),
=7.05×100,
=705;
(4)(2
×
+2
×6.2-5.8×2
-
÷
)×
,
=(
×0.8+
×6.2-5.8×
-
×0.2)×
,
=[
×(0.8+6.2-5.8-0.2)]×
,
=[
×1]×
,
=
×
,
=1;
(5)8
÷[7.8+
×(2.75+1.25)],
=8
÷[7.8+
×4],
=8
÷(7.8+1),
=8.8÷8.8,
=1;
(6)8.1÷(4
-0.05×70)÷1
,
=8.1÷(4
-3.5)÷1
,
=
÷
÷
,
=
×
×
,
=
.
| 1 |
| 27 |
| 1 |
| 36 |
=3÷[9×
| 1 |
| 27 |
| 1 |
| 36 |
=3÷[
| 1 |
| 3 |
| 1 |
| 4 |
=3÷
| 1 |
| 12 |
=36×12,
=432;
(2)93.6÷[(6-2.88)×(5
| 7 |
| 8 |
=93.6÷[3.12×4],
=93.6÷12.48,
=7.5;
(3)7.05×37+64×7.05-7.05,
=7.05×(37+64-1),
=7.05×100,
=705;
(4)(2
| 2 |
| 9 |
| 4 |
| 5 |
| 2 |
| 9 |
| 2 |
| 9 |
| 1 |
| 5 |
| 9 |
| 20 |
| 9 |
| 20 |
=(
| 20 |
| 9 |
| 20 |
| 9 |
| 20 |
| 9 |
| 20 |
| 9 |
| 9 |
| 20 |
=[
| 20 |
| 9 |
| 9 |
| 20 |
=[
| 20 |
| 9 |
| 9 |
| 20 |
=
| 20 |
| 9 |
| 9 |
| 20 |
=1;
(5)8
| 4 |
| 5 |
| 1 |
| 4 |
=8
| 4 |
| 5 |
| 1 |
| 4 |
=8
| 4 |
| 5 |
=8.8÷8.8,
=1;
(6)8.1÷(4
| 1 |
| 7 |
| 2 |
| 7 |
=8.1÷(4
| 1 |
| 7 |
| 2 |
| 7 |
=
| 81 |
| 10 |
| 9 |
| 14 |
| 9 |
| 7 |
=
| 81 |
| 10 |
| 14 |
| 9 |
| 7 |
| 9 |
=
| 49 |
| 5 |
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