4.27﹣1.72+0.73﹣2.2812.83﹣(9.5+2.83)16+(5.32﹣2.16)5.6×0.1259.8×0.996.2×0.35+0.35×3.81.2×198﹣9.8×121÷(1.3×28)
先在□里填上合适的数(零除外),尽量使计算简便,并计算.×4.4+5.6×□ 1376﹣529﹣□
计算,能简算的要简算.×÷1110÷〔56×〕÷2.5×(1.9+1.9+1.9+1.9)5.4÷18+12.
用递等式计算. 1.7+3.98+54.8×3.9+6.1×412×(+﹣)(+)÷+
简算(写出简算的主要过程)×675×1.4+×﹣6.75×+125×0.26+1.25×32.
用简便方法计算.×5.25+3.75÷8+.