题目内容
下面各题怎样算简便就怎样算:
①
+
÷3 ②24÷0.8÷
③
×
+
÷4
④2-
÷
-
⑤0.2-(
-
)×
⑥(0.6+
)÷(1-
).
①
| 1 |
| 4 |
| 3 |
| 4 |
| 2 |
| 5 |
| 3 |
| 4 |
| 8 |
| 13 |
| 8 |
| 13 |
④2-
| 7 |
| 12 |
| 7 |
| 8 |
| 1 |
| 3 |
| 1 |
| 2 |
| 1 |
| 6 |
| 3 |
| 5 |
| 3 |
| 10 |
| 1 |
| 10 |
①
+
÷3,
=
+
,
=
;
②24÷0.8÷
,
=30÷
,
=75;
③
×
+
÷4,
=
×
+
×
,
=(
+
)×
,
=1×
,
=
;
④2-
÷
-
,
=2-
-
,
=2-(
+
),
=2-1,
=1;
⑤0.2-(
-
)×
,
=0.2-
×
,
=0.2-
,
=0;
⑥(0.6+
)÷(1-
),
=0.9÷0.9,
=1.
| 1 |
| 4 |
| 3 |
| 4 |
=
| 1 |
| 4 |
| 1 |
| 4 |
=
| 1 |
| 2 |
②24÷0.8÷
| 2 |
| 5 |
=30÷
| 2 |
| 5 |
=75;
③
| 3 |
| 4 |
| 8 |
| 13 |
| 8 |
| 13 |
=
| 3 |
| 4 |
| 8 |
| 13 |
| 8 |
| 13 |
| 1 |
| 4 |
=(
| 3 |
| 4 |
| 1 |
| 4 |
| 8 |
| 13 |
=1×
| 8 |
| 13 |
=
| 8 |
| 13 |
④2-
| 7 |
| 12 |
| 7 |
| 8 |
| 1 |
| 3 |
=2-
| 2 |
| 3 |
| 1 |
| 3 |
=2-(
| 2 |
| 3 |
| 1 |
| 3 |
=2-1,
=1;
⑤0.2-(
| 1 |
| 2 |
| 1 |
| 6 |
| 3 |
| 5 |
=0.2-
| 1 |
| 3 |
| 3 |
| 5 |
=0.2-
| 1 |
| 5 |
=0;
⑥(0.6+
| 3 |
| 10 |
| 1 |
| 10 |
=0.9÷0.9,
=1.
练习册系列答案
相关题目