x=( )
①15-1.17+4.83=
②0.46+2.88-1.54=
③2.08+3.45=
④12.5-9.86=
⑤0.45+0.87=
⑥8.26-4.49=
420×30= 200×42= + = 0.9+0.09=
3.8+2= 4.6-0.6= 130×6= 64÷16= 13-5.4+2.6=
360÷6= 8-2.7= 15×80= 4.25+2.75= 7.2-3.3-0.7=