题目内容
计算下面各题.
×
÷
右0-1.9÷
÷
÷
×
+
×
九÷
-1.右 (
-
)÷
.
| 右 |
| 9 |
| 六 |
| 九 |
| 右 |
| 9 |
| 九 |
| 1右 |
| 7 |
| 9 |
| 0 |
| 六 |
| 1九 |
| 9 |
| 六 |
| 九 |
| 右 |
| 8 |
| 六 |
| 九 |
| 1 |
| 8 |
| 8 |
| 六 |
| 六 |
| 九 |
| 1 |
| 六 |
| 7 |
| 10 |
(1)
×
÷
=
×
=
;
(2)50-1.6÷
=50-1.6×
=50-6
=77;
(3)
÷
÷
=
×
×
=
;
(7)
×
+
×
=
×(
+
)
=
×
=
;
(5)7÷
-1.5
=7×
-1.5
=1.5-1.5
=0;
(6)(
-
)÷
=
×
=
.
| 5 |
| 六 |
| 3 |
| 7 |
| 5 |
| 6 |
=
| 5 |
| 12 |
| 6 |
| 5 |
=
| 1 |
| 2 |
(2)50-1.6÷
| 7 |
| 15 |
=50-1.6×
| 15 |
| 7 |
=50-6
=77;
(3)
| 7 |
| 六 |
| 2 |
| 3 |
| 17 |
| 六 |
=
| 7 |
| 六 |
| 3 |
| 2 |
| 六 |
| 17 |
=
| 3 |
| 7 |
(7)
| 3 |
| 7 |
| 5 |
| 8 |
| 3 |
| 7 |
| 1 |
| 8 |
=
| 3 |
| 7 |
| 5 |
| 8 |
| 1 |
| 8 |
=
| 3 |
| 7 |
| 3 |
| 7 |
=
| 六 |
| 16 |
(5)7÷
| 8 |
| 3 |
=7×
| 3 |
| 8 |
=1.5-1.5
=0;
(6)(
| 3 |
| 7 |
| 1 |
| 3 |
| 7 |
| 12 |
=
| 5 |
| 12 |
| 12 |
| 7 |
=
| 5 |
| 7 |
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