①3.6﹣2.8+7.4﹣7.2
②1.25×1.6×25
③÷4
④÷[(﹣)×]
24×50=
14.3﹣4.03=
4.2×(-)=
:( )=
0.35÷0.7=
0.5×=
9÷3%+30%=
1﹣1÷1+1=
①2.4÷×
②(+﹣)×36
③×99
④29.3﹣12.6﹣7.4
⑤5.9×8.5﹣49×0.85
⑥×[6÷(﹣)]
①3400÷17+125×80
②2.5×43+2.5
③(+﹣)÷
④×25××4
⑤×[0.8﹣(﹣0.15)]
⑥7.6﹣3÷7﹣
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