题目内容
计算.
(1)22.7-1.8+17.3-18.2
(2)3899+3737÷37
(3)385×6÷385×6
(4)
+
×(
-
)
(5)32×125%×
(6)38.4×13+30.8×26.
(1)22.7-1.8+17.3-18.2
(2)3899+3737÷37
(3)385×6÷385×6
(4)
| 4 |
| 15 |
| 2 |
| 5 |
| 5 |
| 6 |
| 2 |
| 3 |
(5)32×125%×
| 1 |
| 4 |
(6)38.4×13+30.8×26.
(1)22.7-1.8+17.3-18.2,
=(22.7+17.3)-(1.8+18.2),
=40-20,
=20;
(2)3899+3737÷37,
=3899+101,
=4000;
(3)385×6÷385×6,
=(385÷385)×(6×6),
=1×36,
=36;
(4)
+
×(
-
),
=
+
×
,
=
+
,
=
;
(5)32×125%×
,
=8×4×1.25×
,
=(8×1.25)×(4×
),
=10×1,
=10;
(6)38.4×13+30.8×26,
=38.4×13+61.6×13,
=(38.4+61.6)×13,
=100×13,
=1300.
=(22.7+17.3)-(1.8+18.2),
=40-20,
=20;
(2)3899+3737÷37,
=3899+101,
=4000;
(3)385×6÷385×6,
=(385÷385)×(6×6),
=1×36,
=36;
(4)
| 4 |
| 15 |
| 2 |
| 5 |
| 5 |
| 6 |
| 2 |
| 3 |
=
| 4 |
| 15 |
| 2 |
| 5 |
| 1 |
| 6 |
=
| 4 |
| 15 |
| 1 |
| 15 |
=
| 1 |
| 3 |
(5)32×125%×
| 1 |
| 4 |
=8×4×1.25×
| 1 |
| 4 |
=(8×1.25)×(4×
| 1 |
| 4 |
=10×1,
=10;
(6)38.4×13+30.8×26,
=38.4×13+61.6×13,
=(38.4+61.6)×13,
=100×13,
=1300.
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