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5.6+2.7+4.5
5.6+2.7+4.5
等于多少,用简便计算?
答:
原式=
5.6+4.5+2.7
=5.6+4.4+(0.1+2.7)=10+2.8 =12.8
5.6
十
2.7
十
4.5
脱式计算
答:
(
5.6+2.7
)
+4.5
=8.3+4.5 =12.8
5.6+2.7+4.5
脱式计算
答:
(1)5.6+2.7+4.5 =8.3+4.5 =12.8
;(2)60+25×8 =60+200 =260;(3)(60-144÷12)÷16 =(60-12)÷16 =48÷16 =3.
5.6+2.7+4.5
=用简便计算
答:
5.6+2.7+4.5
=5+0.6+3-0.3+4+0.5 =12+0.3+0.5 =12.8
5.6+2.7+4.5
用两数定律怎么算
答:
5·6+2·7+4·5=12·8
5.6
十
2.7
十
4.5
用递等式计算
答:
5.6
十
2.7
十4.5 =8.3
+4.5
=12.8 请采纳正确答案,你们只提问,不采纳正确答案,回答都没有劲!谢谢管理员推荐采纳!!朋友,请【采纳答案】,您的采纳是我答题的动力,如果没有明白,请追问。谢谢。
5.6+2.7+4.5
用两数定律怎么算?
答:
5.6+2.7+4.5
=5.5+0.1+2.7+4.5 =5.5+4.5+0.1+2.7 =10+0.1+2.7 =10.1+2.7 =12.8
5.6+2.7+4.5
的简便计算
答:
5.6+2.7+4.5
的简便计算 5.6+2.7+4.5 =5.6+4.5+2.7 =5.6+4.4+0.1+2.7 =10+2.8=12.8
5.6+2.7+4.5
的简便计算
答:
5.6+2.7+4.5
=5+0.6+3-0.3+4+0.5=12+0.3+0.5=12.8简便计算简便计算是一种特殊的计算,它运用了运算定律与数字的基本性质,从而使计算简便,使一个很复杂的式子变得很容易计算出得数。性质减法1a-b-c=a-(b+c)减法2a-b-c=a-c-b除法1a÷b÷c=a÷(b×c)除法2a÷b÷c=a÷...
计算下面各题
5.6+2.7+4.5
= 77+2.7+2.8+25=
答:
5.6+2.7+4.5
=8.3+4.5 =12.8 77+2.7+2.8+25 =77+5.5+25 =77+30.5 =107.5 谢谢,请采纳
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