用数字卡片0357和小数点.按要求组数:十分位是5的小数有()个(2)两位小数有()个(3)零不读出来的小数有()个
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(1)14个 0.537 0.573 3.507 3.570 7.503 7.530 37.50 73.50 30.57 70.53 307.5 703.5 370.5 730.5
(2)18个 30.57 30.75 35.07 35.70 37.05 37.50 50.37 50.73 53.07 53.70 57.03 57.30 70.35 70.53 73.05 73.50 75.03 75.30
(3)30个 30.57 30.75 50.37 50.73 70.35 70.53 35.70 53.70 37.50 73.50 57.30 75.30 3.570 3.750 5.370 5.730 7.350 7.530 357.0 375.0 537.0 573.0 735.0 753.0 350.7 370.5 530.7 570.3 730.5 750.3