126+574=______; | 450-60=______; | 48×5=______; | 420÷14=______; | 0.8÷0.2=______; | 3.14+1.86=______; | 6.7-3.8=______; | 101×25=______; | 2.5×8=______; | +=______; | ÷=______; | ++=______; | -=______; | 1-=______; | ×=______; | 3--=______; | 16×=______; | ÷=______; | ÷=______; | 1÷-=______. |
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