Question

0.64×2.5×78+2.2怎么简算

Answer 1

0.64×2.5×78+2.2
=0.64×2.5×78+2.2
=1.6×78+2.2
=124.8+2.2
=127

Answer 2

0.64x2.5x78+2.2
＝0.8x0.8x2.5x78+2.2
＝0.8x（哪旅裂镇信0.8x2.5）x78+2.2
＝0.8x2x78+2.2
＝1.6x78+2.2
＝124.8+2.2
＝127
结果等于李闭127。