计算:
①3.2×1.25×0.25 ②5.8×[1÷(2.1﹣2.09)]
③3150×101﹣3150 ④42÷(12+23 )
⑤34×78+18×75% ⑥(78﹣516)×(59+23)
计算:
①3.2×1.25×0.25 ②5.8×[1÷(2.1﹣2.09)]
③3150×101﹣3150 ④42÷(12+23 )
⑤34×78+18×75% ⑥(78﹣516)×(59+23)