怎样简便记算3·14×52+6·28×23+6·28这题能简便记算吗?
2个回答
3.14×52+6.28×23+6.28
=3.14×52+3.14×46+3.14×2
=3.14×(52+46+2)
=3.14×100
=314
相关问题
6.28×(-23.3)-3.14×35.2-1.57×36.4这题怎样简便运算?
-3.14×34+6.28×(-23)+3.14×(-20)(简便计算,)
用简便方法计算:-3.14×35.2+6.28×(-23.3)-1.57×36.4=______.
用简便方法计算:-3.14×35.2+6.28×(-23.3)-1.57×36.4=______.
用简便方法计算:-3.14×35.2+6.28×(-23.3)-1.57×36.4=______.
用简便方法计算:-3.14×35.2+6.28×(-23.3)-1.57×36.4=______.
用简便方法计算:-3.14×35.2+6.28×(-23.3)-1.57×36.4=______.
用简便方法计算:-3.14×35.2+6.28×(-23.3)-1.57×36.4=______.
那位帮我做做这个怎么用简便算2.8×23.4+11.1×57.6+6.54×28=
怎样简便怎样算. [5/6]×[7/25]×6 [2/5]×[3/14]×[2/3] ([3/7]+[1/2])×14