①3.8-1.9=
②4.6+2.7=
③45×92=
④228÷6=
⑤64×82=
⑥※504÷8=
16.8+4.6= 10-7.2= 66 × 65=
① 20-7.5=
② 75×80=
③68×36=
72×45= 24.3-1.5= 510÷6= ※602÷5=
①9.4﹣7.5=
②6.3+0.8=
③46×32=
④24×37=
⑤832÷8=
⑥※213÷7=