要简便的计算的 3.12*4+1.88*4= 0.88*105-0.88*5= 0.75*99+0.75= 3.12*4.7+4.7*5.88+4.7=8*0.6+12*0.6-3.2*0.6 1.53+3.62+0.38+4.47 7.35-0.73-1.27 9.6*28.5+0.285*40
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 20:38:24
![要简便的计算的 3.12*4+1.88*4= 0.88*105-0.88*5= 0.75*99+0.75= 3.12*4.7+4.7*5.88+4.7=8*0.6+12*0.6-3.2*0.6 1.53+3.62+0.38+4.47 7.35-0.73-1.27 9.6*28.5+0.285*40](/uploads/image/z/134791-7-1.jpg?t=%E8%A6%81%E7%AE%80%E4%BE%BF%E7%9A%84%E8%AE%A1%E7%AE%97%E7%9A%84+3.12%2A4%2B1.88%2A4%3D+0.88%2A105-0.88%2A5%3D+0.75%2A99%2B0.75%3D+3.12%2A4.7%2B4.7%2A5.88%2B4.7%3D8%2A0.6%2B12%2A0.6-3.2%2A0.6+1.53%2B3.62%2B0.38%2B4.47+7.35-0.73-1.27+9.6%2A28.5%2B0.285%2A40)
要简便的计算的 3.12*4+1.88*4= 0.88*105-0.88*5= 0.75*99+0.75= 3.12*4.7+4.7*5.88+4.7=8*0.6+12*0.6-3.2*0.6 1.53+3.62+0.38+4.47 7.35-0.73-1.27 9.6*28.5+0.285*40
要简便的计算的 3.12*4+1.88*4= 0.88*105-0.88*5= 0.75*99+0.75= 3.12*4.7+4.7*5.88+4.7=
8*0.6+12*0.6-3.2*0.6 1.53+3.62+0.38+4.47 7.35-0.73-1.27 9.6*28.5+0.285*40
要简便的计算的 3.12*4+1.88*4= 0.88*105-0.88*5= 0.75*99+0.75= 3.12*4.7+4.7*5.88+4.7=8*0.6+12*0.6-3.2*0.6 1.53+3.62+0.38+4.47 7.35-0.73-1.27 9.6*28.5+0.285*40
3.12*4+1.88*4=(3.12+1.88)*4=20
0.88*105-0.88*5=(105-5)*0.88=88
0.75*99+0.75=(99+1)*0.75=75
3.12*4.7+4.7*5.88+4.7=(3.12+5.88+1)*4.7=47
8*0.6+12*0.6-3.2*0.6=(8+12-3.2)*0.6=10.08
1.53+3.62+0.38+4.47=(1.53+4.47)+(3.62+0.38)=6+4=10
7.35-0.73-1.27=7.35-(0.73+1.27)=7.35-2=5.35
9.6*28.5+0.285*40=96*2.85+4*2.85=(96+4)*2.85=100*2.85=285