题目内容
怎样算简便就怎样算.
-
÷
×
×[
-(
-
)]
24×
+51×
0.25×(1.6+1.6+1.6+1.6)
| 6 |
| 7 |
| 6 |
| 7 |
| 2 |
| 3 |
| 1 |
| 6 |
| 8 |
| 9 |
| 3 |
| 4 |
| 7 |
| 16 |
| 1 |
| 4 |
24×
| 51 |
| 43 |
| 19 |
| 43 |
0.25×(1.6+1.6+1.6+1.6)
(1)
-
÷
×
,
=
-
×
×
,
=
-
,
=
;
(2)
×[
-(
-
)],
=
×[(
+
)-
],
=
×[1-
],
=
×
,
=
;
(3)24×
+51×
,
=
×51+51×
,
=(
+
)×51,
=1×51,
=51;
(4)0.25×(1.6+1.6+1.6+1.6),
=0.25×4×1.6,
=1×1.6,
=1.6.
| 6 |
| 7 |
| 6 |
| 7 |
| 2 |
| 3 |
| 1 |
| 6 |
=
| 6 |
| 7 |
| 6 |
| 7 |
| 3 |
| 2 |
| 1 |
| 6 |
=
| 6 |
| 7 |
| 3 |
| 14 |
=
| 9 |
| 14 |
(2)
| 8 |
| 9 |
| 3 |
| 4 |
| 7 |
| 16 |
| 1 |
| 4 |
=
| 8 |
| 9 |
| 3 |
| 4 |
| 1 |
| 4 |
| 7 |
| 16 |
=
| 8 |
| 9 |
| 7 |
| 16 |
=
| 8 |
| 9 |
| 9 |
| 16 |
=
| 1 |
| 2 |
(3)24×
| 51 |
| 43 |
| 19 |
| 43 |
=
| 24 |
| 43 |
| 19 |
| 43 |
=(
| 24 |
| 43 |
| 19 |
| 43 |
=1×51,
=51;
(4)0.25×(1.6+1.6+1.6+1.6),
=0.25×4×1.6,
=1×1.6,
=1.6.
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