如题所述
0.6×98+1.2
=0.6×（100-2）+1.2
=0.6×100-0.6×2+1.2
=60-1.2+1.2
=60
=0.6×（100-2）+1.2
=0.6×100-0.6×2+1.2
=60-1.2+1.2
=60
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第1个回答 2019-09-11
0.6×98+1.2简便计算；
0.6*98+1.2
=0.6*98+0.6*2
=0.6*（98+2）
=0.6*100
=60
0.6*98+1.2
=0.6*98+0.6*2
=0.6*（98+2）
=0.6*100
=60
第2个回答 2019-09-11
0.6x100-0.6x2+1.2等于60-1.2+1.2＝60
第3个回答 2019-09-11
0.6️×（100-2）+1.2
=0.6×100-0.6×2+1.2
=60-1.2+1.2
=60
=0.6×100-0.6×2+1.2
=60-1.2+1.2
=60
