16+25=
80-0.8=
2700÷900=
0.63+0.03=
17.5-(18-2.5)=
46-4.5×8=
1 千米的7千米的 4.35×1.024.35 2
3÷12=
642÷81≈
705-455=
0.3×400=
8.1-0.03=
13+62+15=
0.3×0.3=
8×25%=
①150+500=
②1.2+2.3=
③240-200=
④4.85-3.15=
⑤
⑥
⑦5.4÷0.9=
⑧2.5×0.4=
103-68=
×36=
37.42+ 6.38=
1-0.84=
0.8×12.5=
2.04÷4=
63.4-7.8-2.2=
×0=
①
②
× 3 ÷1
1.5×1= 910÷70= 2.2﹣1.9= 6÷7= 435+199=
+= -= ÷= 20×= ×=
① × = ②24× = ③3× = ④1﹣ =
⑤ ÷2= ⑥2÷ = ⑦ ÷ = ⑧0÷ =
36× = 12× = × = ×3=
1÷ = ÷6= ÷ = 100÷10%=