①
②7.8-3.29-0.71+2.2
③32×25
④23.7×1 -3 ×1.2
⑤62×99
⑥42×( + )
7×8÷7×8= 0×0.35+3.5= +=
×+×= 0.52= 6×3.14=
10+ = ×6×0=
6- + = 1.25×32= 3.78-1.191-0.09=
510÷30= 1÷2.5=
= 1.2-0.03= 3× - ×3=
5+0.5÷0.5-5=
48×( )=