题目内容
| 15÷
| ||||||||||||
0.125÷
| 0÷
| ||||||||||||
0.68+
|
| ||||||||||||
| 0.33= | ||||||||||||
| 1÷7×24= | 5-1.4-1.6= |
(1)
+
÷
+
,
=
+
+
,
=1
;
(2)15÷
×
,
=15×15×
,
=15;
(3)0.125÷
÷
,
=
×8×
,
=1
;
(4)0÷
÷
=0;
(5)0.68+
+0.32,
=(0.68+0.32)+
,
=1+
,
=1
;
(6)
×5÷
×5,
=
×5×
×5,
=25;
(7)
×10+10×
,
=(
+
)×10,
=1×10,
=10;
(8)0.33
=0.3×0.3×0.3,
=0.027;
(9)1÷7×24,
=
×24,
=3
;
(10)5-1.4-1.6,
=5-(1.4+1.6),
=5-3,
=2.
| 2 |
| 3 |
| 1 |
| 4 |
| 3 |
| 4 |
| 1 |
| 4 |
=
| 3 |
| 4 |
| 1 |
| 3 |
| 1 |
| 4 |
=1
| 1 |
| 4 |
(2)15÷
| 1 |
| 15 |
| 1 |
| 15 |
=15×15×
| 1 |
| 15 |
=15;
(3)0.125÷
| 1 |
| 8 |
| 7 |
| 9 |
=
| 1 |
| 8 |
| 9 |
| 7 |
=1
| 2 |
| 7 |
(4)0÷
| 8 |
| 9 |
| 1 |
| 18 |
(5)0.68+
| 2 |
| 3 |
=(0.68+0.32)+
| 2 |
| 3 |
=1+
| 2 |
| 3 |
=1
| 2 |
| 3 |
(6)
| 2 |
| 5 |
| 2 |
| 5 |
=
| 2 |
| 5 |
| 5 |
| 2 |
=25;
(7)
| 5 |
| 7 |
| 2 |
| 7 |
=(
| 5 |
| 7 |
| 2 |
| 7 |
=1×10,
=10;
(8)0.33
=0.3×0.3×0.3,
=0.027;
(9)1÷7×24,
=
| 1 |
| 7 |
=3
| 3 |
| 7 |
(10)5-1.4-1.6,
=5-(1.4+1.6),
=5-3,
=2.
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