× = ÷ = 2÷0.5= 3÷ =
1+40%= 0.58+ = ÷ = 1.8× =
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=
⑴2 +3.7=
⑵
⑶16×0.5=
⑷
⑸210-98=
⑹1.2÷=
⑺
⑻1-=
× 3 ÷1
345﹣298= 0.64÷0.8= ﹣ = × =
1÷0.05= 0.25×40= 2÷ = ×25%=
1- - = × = 0.1÷10%= 0.7+ =
3.6×99+3.6= 0.24×5= ÷ = 0.23=
× = 10÷0.05= + = 0.82= 1-14%=