题目内容
计算.
(1)9
×4.25+4
×
(2)[22.5+(3
+1.8-1.21×
)]÷40%
(3)
×
+
×
+
×3
(4)
.
(1)9
| 5 |
| 6 |
| 1 |
| 4 |
| 1 |
| 6 |
(2)[22.5+(3
| 3 |
| 5 |
| 5 |
| 11 |
(3)
| 3 |
| 10 |
| 3 |
| 8 |
| 1 |
| 15 |
| 7 |
| 16 |
| 1 |
| 5 |
| 1 |
| 2 |
(4)
| ||||||
13
|
(1)9
×4.25+4
×
,
=(9
+
)×4.25,
=10×4.25,
=42.5;
(2)[22.5+(3
+1.8-1.21×
)]÷40%,
=[22.5+(3.6+1.8-0.55)]÷40%,
=[22.5+(5.4-0.55)]÷40%,
=[22.5+4.85]÷0.4,
=27.35÷0.4,
=68.375;
(3)
×
+
×
+
×3
,
=
+
+
,
=
+
,
=
;
(4)
,
=
,
=
,
=
×
,
=
.
| 5 |
| 6 |
| 1 |
| 4 |
| 1 |
| 6 |
=(9
| 5 |
| 6 |
| 1 |
| 6 |
=10×4.25,
=42.5;
(2)[22.5+(3
| 3 |
| 5 |
| 5 |
| 11 |
=[22.5+(3.6+1.8-0.55)]÷40%,
=[22.5+(5.4-0.55)]÷40%,
=[22.5+4.85]÷0.4,
=27.35÷0.4,
=68.375;
(3)
| 3 |
| 10 |
| 3 |
| 8 |
| 1 |
| 15 |
| 7 |
| 16 |
| 1 |
| 5 |
| 1 |
| 2 |
=
| 9 |
| 80 |
| 7 |
| 240 |
| 7 |
| 10 |
=
| 34 |
| 240 |
| 168 |
| 240 |
=
| 101 |
| 120 |
(4)
| ||||||
13
|
=
| ||||
13
|
=
| ||
|
=
| 23 |
| 12 |
| 3 |
| 4 |
=
| 23 |
| 16 |
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