怎样算简便就怎样算．13+16+2937+34-111458-（38+14）87-59-49415+79+1115-49914-38+514-18．-数学
-
-
，
=
-（
+
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=
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=
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⑤
+
+
-
，
=（
+
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-
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=1+
，
=1
；
⑥
-
+
-
，
=（
+
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+
| 5 |
| 9 |
| 4 |
| 9 |
=
| 8 |
| 7 |
| 5 |
| 9 |
| 4 |
| 9 |
=
| 8 |
| 7 |
=
| 1 |
| 7 |
⑤
| 4 |
| 15 |
| 7 |
| 9 |
| 11 |
| 15 |
| 4 |
| 9 |
=（
| 4 |
| 15 |
| 11 |
| 15 |
| 7 |
| 9 |
| 4 |
| 9 |
=1+
| 1 |
| 3 |
=1
| 1 |
| 3 |
⑥
| 9 |
| 14 |
| 3 |
| 8 |
| 5 |
| 14 |
| 1 |
| 8 |
=（
| 9 |
| 14 |
| 5 |
| 14 |
| 3 |
| 8 |
