发布网友 发布时间:2024-10-23 08:24
共1个回答
热心网友 时间:2024-10-23 14:11
原式=51.27-8.64-7.27
=51.27-7.27-8.64
=44-8.64
=35.36
10.38+0.14-1.38+0.28脱式计算简便运算
=(10.38-1.38)+(0.14+0.28)
=9+0.42
=9.42
455-(155+230)
=455-155-230
=300-230
=70
谢谢希望可以帮到你
嘻嘻
(750-435)÷(30+5)
=315÷35
=315÷5÷7
=63÷7
=9
=3999+500-2
=4499-2
=4497
51.27-8.03+1.34
51.27-9.37
41.9
=628+372-367
=1000-367
=633
985-(85+67)
=985-85-67
=900-67
=833
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321×24日及21×34的简便运算脱式计算
321×24+21×34
=7704+714
=8418
直接计算