7元8角2分=元 3千克40克=克
9.5×0.160.16×5.9 37.6×1003.76÷0.01
1-0.75= 4.2+3.8= 3.8×0.01= 56.7÷1000=
3.5-1.3= 0.8×0.9= 8.92+1.08= 0.25×8=
①10-5.48=
②88.2-0.83=
③56.9+19.86=
④1.4×0.58=
⑤7.03×8.2=
⑥1.25×8.4=