△÷(○×□)=△÷○×□ .
计算下面各题:(能简算的要简算) 6.7+25+3.3+75103×1214.85﹣(4.85+2.5)15×99+15 (125+25)×82000÷125÷8300﹣125+30×5432÷12÷(57﹣51) 704﹣(53﹣18)×12458﹣75×4+132(459﹣27×5)÷36(200+350)÷11×38.
用你喜欢的方法计算. 15×35+15×65 25×125×32 1300÷25÷4 (25×120)×4 78×99 1200÷[(372+88)÷23].
计算下面各题(能简算的要简算) 1.25×3.2×2.51.8×5.6+44×0.183.4×99+3.4 101×8.3﹣8.3(27÷1.8﹣11)×2.539.4×[0.96÷(5.4÷0.9)].
简便运算. 7.5+2.7+2.7+2.5+4.3 7.9﹣3.27﹣0.73+1.172×125 (80+4)×12567×88+67×11+67 203×15.
怎样简便怎样算: ①8.35+3.8﹣2.35②15.4﹣(5.4+2.3)③98×45 ④16×125×25⑤12×69﹣69×2⑥(20+8)×25.