计算下面各题.738-174×5÷29 6.2-4.56÷1.9+2.75 &nb...
计算下面各题.738-174×5÷296.2-4.56÷1.9+2.757.3-2.34÷0.9×0.5(1000-195.2)÷(73.4+7.08)154×89÷53...
计算下面各题.738-174×5÷29 6.2-4.56÷1.9+2.75 7.3-2.34÷0.9×0.5 (1000-195.2)÷(73.4+7.08) 154×89÷53 (59+1730-715)×4559.
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(1)738-174×5÷29
=738-870÷29
=738-30
=708;
(2)6.2-4.56÷1.9+2.75
=6.2-2.4+2.75
=3.8+2.75
=6.55;
(3)7.3-2.34÷0.9×0.5
=7.3-2.6×0.5
=7.3-1.3
=6;
(4)(1000-195.2)÷(73.4+7.08)
=804.8÷80.48
=10;
(5)
×
÷
=
×
×
=2;
(6)(
+
-
)×
=(
+
-
)×
=
×
=
.
=738-870÷29
=738-30
=708;
(2)6.2-4.56÷1.9+2.75
=6.2-2.4+2.75
=3.8+2.75
=6.55;
(3)7.3-2.34÷0.9×0.5
=7.3-2.6×0.5
=7.3-1.3
=6;
(4)(1000-195.2)÷(73.4+7.08)
=804.8÷80.48
=10;
(5)
15 |
4 |
8 |
9 |
5 |
3 |
=
15 |
4 |
8 |
9 |
3 |
5 |
=2;
(6)(
5 |
9 |
17 |
30 |
7 |
15 |
45 |
59 |
=(
50 |
90 |
51 |
90 |
42 |
90 |
45 |
59 |
=
59 |
90 |
45 |
59 |
=
1 |
2 |
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