要30道题类似于这种12.5*8.8=12.8*(8+0.8)=12.5*8+12.5*0.8=100+10=110
问题描述:
要30道题类似于这种12.5*8.8
=12.8*(8+0.8)
=12.5*8+12.5*0.8
=100+10
=110
答
6.28+5.74+3.72+5.26 48×6.2+6.2×52 25×125×4×8方法:方法:方法:16.9-5.6-4.4 9.08-(5.7+1.08) 5.8×99+5.8 方法:方法:方法:360÷(1.2÷50) (40+1.25)×8 483+199 一、简算.★1.1035-998 ★2.5076+...