2222*0.29+6666*0.09-3333*0.04
问题描述：
2222*0.29+6666*0.09-3333*0.04
答
＝1111×2×0.29+1111×6×0.09-1111×3×0.04＝1111×（0.58+0.54-0.12）＝1111
2222*0.29+6666*0.09-3333*0.04
＝1111×2×0.29+1111×6×0.09-1111×3×0.04＝1111×（0.58+0.54-0.12）＝1111