题目内容
| 脱式计算. 12-14×5÷35 | 0.125×16×2.5 | (1.2+4.8÷0.6)-0.2 | ||||||||||||||||
| (1-
|
|
(1)12-14×5÷35
=12-14×
,
=12-2,
=10;
(2)0.125×16×2.5
=0.125×4×4×2.5,
=(0.125×4)×(4×2.5),
=0.5×10,
=5;
(3)(1.2+4.8÷0.6)-0.2
=(1.2+8)-0.2,
=9.2-0.2,
=9;
(4)
×
+
×
=(
+
)×
,
=1×
;
=
;
(5)(1-
×0.5)÷11
=(1-
×
)÷11,
=(1-
)÷11,
=
×
,
=
;
(6)
÷[1-(
+
)]
=
÷[1-
],
=
÷
,
=
×6,
=5.
=12-14×
| 1 |
| 7 |
=12-2,
=10;
(2)0.125×16×2.5
=0.125×4×4×2.5,
=(0.125×4)×(4×2.5),
=0.5×10,
=5;
(3)(1.2+4.8÷0.6)-0.2
=(1.2+8)-0.2,
=9.2-0.2,
=9;
(4)
| 2 |
| 5 |
| 1 |
| 7 |
| 3 |
| 5 |
| 1 |
| 7 |
=(
| 2 |
| 5 |
| 3 |
| 5 |
| 1 |
| 7 |
=1×
| 1 |
| 7 |
=
| 1 |
| 7 |
(5)(1-
| 8 |
| 15 |
=(1-
| 8 |
| 15 |
| 1 |
| 2 |
=(1-
| 4 |
| 15 |
=
| 11 |
| 15 |
| 1 |
| 11 |
=
| 1 |
| 15 |
(6)
| 5 |
| 6 |
| 3 |
| 4 |
| 1 |
| 12 |
=
| 5 |
| 6 |
| 5 |
| 6 |
=
| 5 |
| 6 |
| 1 |
| 6 |
=
| 5 |
| 6 |
=5.
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