怎样简便就怎样算125×3.2×2.5 &nbs...
怎样简便就怎样算125×3.2×2.58.3×4.7+0.83×5311×（311+213）×13（457+457+457+457）×0.250.6+0.4÷3547.3...
怎样简便就怎样算125×3.2×2.5 8.3×4.7+0.83×53 11×（311+213）×13 （457+457+457+457）×0.25 0.6+0.4÷35 47.3×8.4+47.3÷53+47.3
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①125×3.2×2.5
=（125×8）×（0.4×2.5）
=1000×1
=1000；
②8.3×4.7+0.83×53
=8.3×4.7+8.3×5.3
=8.3×（4.7+5.3）
=8.3×10
=83；
③11×（
+
）×13
=11×
×13+11×
×13
=39+22
=61；
④（4
+4
+4
+4
）×0.25
=4
×(4×0.25)
=4
×1
=4
；
⑤0.6+0.4÷
=
+
×
=
+
=
；
⑥47.3×8.4+47.3÷
+47.3
=47.3×8.4+47.3×0.6+47.3
=47.3×（8.4+0.6+1）
=47.3×10
=473．
=（125×8）×（0.4×2.5）
=1000×1
=1000；
②8.3×4.7+0.83×53
=8.3×4.7+8.3×5.3
=8.3×（4.7+5.3）
=8.3×10
=83；
③11×（
| 3 |
| 11 |
| 2 |
| 13 |
=11×
| 3 |
| 11 |
| 2 |
| 13 |
=39+22
=61；
④（4
| 5 |
| 7 |
| 5 |
| 7 |
| 5 |
| 7 |
| 5 |
| 7 |
=4
| 5 |
| 7 |
=4
| 5 |
| 7 |
=4
| 5 |
| 7 |
⑤0.6+0.4÷
| 3 |
| 5 |
=
| 3 |
| 5 |
| 2 |
| 5 |
| 5 |
| 3 |
=
| 3 |
| 5 |
| 2 |
| 3 |
=
| 19 |
| 15 |
⑥47.3×8.4+47.3÷
| 5 |
| 3 |
=47.3×8.4+47.3×0.6+47.3
=47.3×（8.4+0.6+1）
=47.3×10
=473．
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