A. 347-98=簡便計算
347-98
=347-(100-2)
=347-100+2
=247+2
=249
B. 347減98用簡便演算法計算
原式
=347-98
=347-(100-2)
=347-100+2
=247+2
=249
供參考。
C. 347X98用簡便方法計算
只能是稍微簡便點
=347×(100-2)
=347×100-347×2
=34700-(350-3)×2
=34700-350×2+3×2
=34700-700+6
=34006
D. 34×98=怎麼簡便方法計算
解:這道題考點為四則運算,且可以把98寫成100-2的形式!
則有:
34*98
=34*(100-2)
=3400-68
=3332
E. 347+98簡便方法怎樣計算
=345+2+98
=445
請參考!
F. 347-98用簡便方法計算是
347-98
=347-(100-2)
=347-100+2
=249;
故選:C.
G. 347-98用簡便方法計算是()A.347-100-2B.347-(100+2)C.347-100+
347-98
=347-(100-2)
=347-100+2
=249;
故選:C.
H. 347-98用簡便方法計算是() A.347-100-2 B.347-(100+2) C.347-100+
347-98 =347-(100-2) =347-100+2 =249; 故選:C. |