题目内容
| 怎样算简便就怎样算. 24×
| 0.25×(1.6+1.6+1.6+1.6) |
| 0.125×32×2.5. |
(1)24×
+51×
,
=24×
+62×
,
=(24+62)×
,
=86×
,
=102;
(2)0.25×(1.6+1.6+1.6+1.6),
=0.25×4×1.6,
=1×1.6,
=1.6;
(3)
÷
+
×
,
=
×
+
×
,
=(
+
)×
,
=1×
,
=
;
(4)0.125×32×2.5,
=0.125×8×4×2.5,
=(0.125×8)×(4×2.5),
=1×10,
=10.
| 51 |
| 43 |
| 62 |
| 43 |
=24×
| 51 |
| 43 |
| 51 |
| 43 |
=(24+62)×
| 51 |
| 43 |
=86×
| 51 |
| 43 |
=102;
(2)0.25×(1.6+1.6+1.6+1.6),
=0.25×4×1.6,
=1×1.6,
=1.6;
(3)
| 7 |
| 9 |
| 11 |
| 5 |
| 2 |
| 9 |
| 5 |
| 11 |
=
| 7 |
| 9 |
| 5 |
| 11 |
| 2 |
| 9 |
| 5 |
| 11 |
=(
| 7 |
| 9 |
| 2 |
| 9 |
| 5 |
| 11 |
=1×
| 5 |
| 11 |
=
| 5 |
| 11 |
(4)0.125×32×2.5,
=0.125×8×4×2.5,
=(0.125×8)×(4×2.5),
=1×10,
=10.
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