Question

2.5×0.73×0.04 能简便计算要简便计算 1.24×8.3＋8.3×1.76

Answer 1

2.5×0.73×0.04
=（2.5×0.04）×0.73
=0.1×0.73
=0.073
1.24×8.3＋8.3×1.76
=（1.24+1.76）×8.3
=3×8.3
=24.9