A. 347-98=简便计算
347-98
=347-(100-2)
=347-100+2
=247+2
=249
B. 347减98用简便算法计算
原式
=347-98
=347-(100-2)
=347-100+2
=247+2
=249
供参考。
C. 347X98用简便方法计算
只能是稍微简便点
=347×(100-2)
=347×100-347×2
=34700-(350-3)×2
=34700-350×2+3×2
=34700-700+6
=34006
D. 34×98=怎么简便方法计算
解:这道题考点为四则运算,且可以把98写成100-2的形式!
则有:
34*98
=34*(100-2)
=3400-68
=3332
E. 347+98简便方法怎样计算
=345+2+98
=445
请参考!
F. 347-98用简便方法计算是
347-98
=347-(100-2)
=347-100+2
=249;
故选:C.
G. 347-98用简便方法计算是()A.347-100-2B.347-(100+2)C.347-100+
347-98
=347-(100-2)
=347-100+2
=249;
故选:C.
H. 347-98用简便方法计算是() A.347-100-2 B.347-(100+2) C.347-100+
347-98 =347-(100-2) =347-100+2 =249; 故选:C. |