直接写出得数．
572﹣298= 0.75+99×0.75= 9.5+0.59= 250×0.04=
= 
= 76×99= 0.125×9×8=
= 0.56÷0.8×5= 
= 15.73﹣（2.8+1.73）=
相关试题
估一估，把算式的序号填写在相应的圈内．
①1.5×0.4 ②0.25×20 ③2.3×2 ④0.9×1.1 ⑤24×0.02 ⑥0.011×100 ⑦1.2×1.2 ⑧0.8×0.5 
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