题目内容
7.08÷(1.25×0.8)= |
|
| 5.38-(2.1+2.38)= | ||||||||||||||
(
| 0.5×(2.6-2.4)= | (0.18+0.9)÷0.9= | 3-
|
(1)7.08÷(1.25×0.8),
=7.08÷1,
=7.08;
(2)
-
+
,
=
+
-
,
=1-
,
=
;
(3)
×
÷
×
,
=
×
×
×
,
=(
×
)×(
×
),
=1×
,
=
;
(4)5.38-(2.1+2.38),
=5.38-2.38-2.1,
=3-2.1,
=0.9;
(5)(
-
)×63,
=
×63-
×63,
=9-7,
=2;
(6)0.5×(2.6-2.4),
=0.5×0.2,
=0.1;
(7)(0.18+0.9)÷0.9,
=1.08÷0.9,
=1.2;
(8)3-
-
,
=3-(
+
),
=3-1,
=2.
=7.08÷1,
=7.08;
(2)
| 5 |
| 9 |
| 5 |
| 6 |
| 4 |
| 9 |
=
| 5 |
| 9 |
| 4 |
| 9 |
| 5 |
| 6 |
=1-
| 5 |
| 6 |
=
| 1 |
| 6 |
(3)
| 3 |
| 5 |
| 2 |
| 5 |
| 3 |
| 5 |
| 2 |
| 5 |
=
| 3 |
| 5 |
| 2 |
| 5 |
| 5 |
| 3 |
| 2 |
| 5 |
=(
| 3 |
| 5 |
| 5 |
| 3 |
| 2 |
| 5 |
| 2 |
| 5 |
=1×
| 4 |
| 25 |
=
| 4 |
| 25 |
(4)5.38-(2.1+2.38),
=5.38-2.38-2.1,
=3-2.1,
=0.9;
(5)(
| 1 |
| 7 |
| 1 |
| 9 |
=
| 1 |
| 7 |
| 1 |
| 9 |
=9-7,
=2;
(6)0.5×(2.6-2.4),
=0.5×0.2,
=0.1;
(7)(0.18+0.9)÷0.9,
=1.08÷0.9,
=1.2;
(8)3-
| 8 |
| 15 |
| 7 |
| 15 |
=3-(
| 8 |
| 15 |
| 7 |
| 15 |
=3-1,
=2.
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