题目内容
计算下面各题:
(
+
)÷
=______;
×9-
×6=______;
13.6÷2-0.4×7=______;
2600-1600÷25÷4=______.
(
| 1 |
| 4 |
| 7 |
| 20 |
| 3 |
| 4 |
| 11 |
| 18 |
| 11 |
| 18 |
13.6÷2-0.4×7=______;
2600-1600÷25÷4=______.
(
+
)÷
,
=(
+
)×
,
=
×
+
×
,
=
+
,
=
+
,
=
,
=
;
×9-
×6,
=
×(9-6),
=
×3,
=
;
13.6÷2-0.4×7,
=6.8-0.28,
=6.52;
2600-1600÷25÷4,
=2600-1600÷(25×4),
=2600-1600÷100,
=2600-16,
=2584.
| 1 |
| 4 |
| 7 |
| 20 |
| 3 |
| 4 |
=(
| 1 |
| 4 |
| 7 |
| 20 |
| 4 |
| 3 |
=
| 1 |
| 4 |
| 4 |
| 3 |
| 7 |
| 20 |
| 4 |
| 3 |
=
| 1 |
| 3 |
| 7 |
| 15 |
=
| 5 |
| 15 |
| 7 |
| 15 |
=
| 12 |
| 15 |
=
| 4 |
| 5 |
| 11 |
| 18 |
| 11 |
| 18 |
=
| 11 |
| 18 |
=
| 11 |
| 18 |
=
| 11 |
| 6 |
13.6÷2-0.4×7,
=6.8-0.28,
=6.52;
2600-1600÷25÷4,
=2600-1600÷(25×4),
=2600-1600÷100,
=2600-16,
=2584.
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