×= 0×= ÷= = = =
用简便方法计算.+3.75++62.5%×35%+×0.350.125×32×0.824×(+﹣)
简便计算6.4+3.25+3.6 7.26﹣2.57﹣3.43 101×23 23×134﹣34×23 99×62+62.
4.5×1.5+4.5×8.5.
用简便方法计算下面各题.1.8×5.46+1.8×4.54 0.65×201 2.33×0.5×499×5.6 4.8×0.25 2.64+8.67+1.33﹣1.64.
用简便方法计算.①1.25×0.25×32 ②0.25×3.78×4 ③6.74×10.1 ④0.85×99 ⑤6.8×3.7+6.8×6.3.