67.4-(18.3-5.7)简便运算?
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解:简便计算过程逗坦锋如下
67.4-(信码18.3-5.7)
=67.4-18.3+5.7
=67.4+1-18.3+4.7
=山晌68.4-18.3+4.7
=50.1+4.7
=54.8
67.4-(信码18.3-5.7)
=67.4-18.3+5.7
=67.4+1-18.3+4.7
=山晌68.4-18.3+4.7
=50.1+4.7
=54.8
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67.4-(18.3-5.7)
= 67.4 - 18.3 + 5.7
= (66.3 + 1.1) - 18.3 + 5.7
= 66.3 - 18.3 + 1.1 + 5.7
= 48 + (1.1 + 5.7)
= 48 + 6.8
= 54.8
= 67.4 - 18.3 + 5.7
= (66.3 + 1.1) - 18.3 + 5.7
= 66.3 - 18.3 + 1.1 + 5.7
= 48 + (1.1 + 5.7)
= 48 + 6.8
= 54.8
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简算简拿侍:
67.4-(18.3-5.7)
=67.4-18.3+5.7
=(68-0.6)-(拦吵敏睁18+0.3)+5.7
=68-0.6-18-0.3+5.7
=50+5.7-0.9
=55.7-0.9
=54.8
67.4-(18.3-5.7)
=67.4-18.3+5.7
=(68-0.6)-(拦吵敏睁18+0.3)+5.7
=68-0.6-18-0.3+5.7
=50+5.7-0.9
=55.7-0.9
=54.8
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