题目内容
递等式计算（写出主要过程）
9.8-（4.5÷1
+3
）×1
1.8×[6
÷16+
×（9-2
）]÷2
+
+
+
+
+
+
．
9.8-（4.5÷1
| 1 |
| 8 |
| 7 |
| 10 |
| 1 |
| 7 |
1.8×[6
| 5 |
| 12 |
| 3 |
| 8 |
| 7 |
| 12 |
| 3 |
| 4 |
15
| ||||
16.25÷
|
| 2 |
| 3 |
| 3 |
| 4 |
| 3 |
| 5 |
| 5 |
| 7 |
| 9 |
| 20 |
| 10 |
| 21 |
| 12 |
| 35 |
9.8-（4.5÷1
+3
）×1
=9.8-（4+3
）×1
=9.8-7.7×1
=9.8-8.8
=1
1.8×[6
÷16+
×（9-2
）]÷2
=1.8×[6
÷16+
×6
]）]÷2
=1.8×[6
×
]÷2
=1.8×
÷
=
=
=1
+
+
+
+
+
=
+
+
=
+
+
=
| 1 |
| 8 |
| 7 |
| 10 |
| 1 |
| 7 |
=9.8-（4+3
| 7 |
| 10 |
| 1 |
| 7 |
=9.8-7.7×1
| 1 |
| 7 |
=9.8-8.8
=1
1.8×[6
| 5 |
| 12 |
| 3 |
| 8 |
| 7 |
| 12 |
| 3 |
| 4 |
=1.8×[6
| 5 |
| 12 |
| 3 |
| 8 |
| 5 |
| 12 |
| 3 |
| 4 |
=1.8×[6
| 5 |
| 12 |
| 7 |
| 16 |
| 3 |
| 4 |
=1.8×
| 539 |
| 192 |
| 4 |
| 11 |
=
| 21 |
| 80 |
15
| ||||
16.25÷
|
=
| 24.4+1.6 |
| 26 |
=1
| 2 |
| 3 |
| 3 |
| 4 |
| 3 |
| 5 |
| 5 |
| 7 |
| 9 |
| 20 |
| 12 |
| 35 |
=
| 17 |
| 12 |
| 58 |
| 35 |
| 9 |
| 20 |
=
| 595 |
| 420 |
| 696 |
| 420 |
| 189 |
| 420 |
=
| 79 |
| 21 |
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