脱式计算.
①2700×(506-499)÷900
②33.02-(148.4-90.85)÷2.5
③(1÷1-1)÷5.1
④18.1+(3-0.299÷0.23)×1.
脱式计算.①2700×(506-499)÷900②33.02-(148.4-90.85)÷2
答案:2 悬赏:0 手机版
解决时间 2021-04-13 00:37
- 提问者网友:呐年旧曙光
- 2021-04-12 11:48
最佳答案
- 五星知识达人网友:鱼忧
- 2021-04-12 12:53
①2700×(506-499)÷900
=2700×7÷900,
=2700÷900×7,
=3×7,
=21;
②33.02-(148.4-90.85)÷2.5
=33.02-57.55÷2.5,
=33.02-23.02,
=10;
③(1÷1-1)÷5.1
=(1-1)÷5.1,
=0÷5.1,
=0;
④18.1+(3-0.299÷0.23)×1
=18.1+(3-1.3)×1,
=18.1+1.7×1,
=18.1+1.7,
=19.8.
=2700×7÷900,
=2700÷900×7,
=3×7,
=21;
②33.02-(148.4-90.85)÷2.5
=33.02-57.55÷2.5,
=33.02-23.02,
=10;
③(1÷1-1)÷5.1
=(1-1)÷5.1,
=0÷5.1,
=0;
④18.1+(3-0.299÷0.23)×1
=18.1+(3-1.3)×1,
=18.1+1.7×1,
=18.1+1.7,
=19.8.
全部回答
- 1楼网友:低血压的长颈鹿
- 2021-04-12 13:16
搜一下:脱式计算.①2700×(506-499)÷900②33.02-(148.4-90.85)÷2
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