8.1-0.03=
13+62+15=
0.3×0.3=
8×25%=
1 千米的7千米的 4.35×1.024.35 2
3÷12=
642÷81≈
705-455=
0.3×400=
14.5-3.2=
308-99=
=
9.03+0.7=
411÷3=
3.6÷3=
0.25×4=
11.6+1.6=
①150+500=
②1.2+2.3=
③240-200=
④4.85-3.15=
⑤
⑥
⑦5.4÷0.9=
⑧2.5×0.4=
⑴2 +3.7=
⑵
⑶16×0.5=
⑷
⑸210-98=
⑹1.2÷=
⑺
⑻1-=
①
②
③
④
1.5×1= 910÷70= 2.2﹣1.9= 6÷7= 435+199=
+= -= ÷= 20×= ×=
1÷0.25= += ×24= +=
﹣= 470×0.02= 10÷= 6×0=
1.5×80= ÷2= ×= ÷0.125=