题目内容
| 用自己喜欢的方法计算. (265-190)×(138÷6) | 38×72-28×72 |
| 600-400÷25×4 | 6500-105×6+50. |
(1)(265-190)×(138÷6)
=75×23
=1725;
(2)38×72-28×72
=(38-28)×72
=10×72
=720;
(3)600-400÷25×4
=600-16×4
=600-64
=536;
(4)6500-105×6+50
=6500-630+50
=5870+50
=5920.
=75×23
=1725;
(2)38×72-28×72
=(38-28)×72
=10×72
=720;
(3)600-400÷25×4
=600-16×4
=600-64
=536;
(4)6500-105×6+50
=6500-630+50
=5870+50
=5920.
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