题目内容
脱式计算
| (1)1655-45×140÷18= | (2)0.63+37%÷(2
|
(3)
|
(1)1655-45×140÷18,
=1655-6300÷18,
=1655-350,
=1305;
(2)0.63+37%÷(2
+1
),
=0.63+37%÷
,
=0.63+
,
=0.72;
(3)
×[
-(
-
)],
=
×[
-
],
=
×
,
=
.
=1655-6300÷18,
=1655-350,
=1305;
(2)0.63+37%÷(2
| 2 |
| 3 |
| 4 |
| 9 |
=0.63+37%÷
| 37 |
| 9 |
=0.63+
| 9 |
| 100 |
=0.72;
(3)
| 4 |
| 9 |
| 3 |
| 4 |
| 7 |
| 16 |
| 1 |
| 4 |
=
| 4 |
| 9 |
| 3 |
| 4 |
| 3 |
| 16 |
=
| 4 |
| 9 |
| 9 |
| 16 |
=
| 1 |
| 4 |
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