3.9÷2×(4.94﹣3.64)
72÷[(3.7﹣2.5)×0.4]
3.36÷[6.3﹣(5.32﹣1.82)]
3.8×0.6+12.5÷0.5
0.8×4= 0.25×0.4= 5.3-1.7= 9.8÷ 100= 0.72÷0.8=
6×0.5= 3.6÷0.09= 10×3.75= 0.32= 2y+7y=
0.8×0.5=
5.6÷0.7=
10×0.9=
5.4÷0.9=
5.1÷1.7=
8.6y-y=
4.7a+5.4a=
0.26×1000=
36÷0.36=
0.01÷0.1=
1.5÷0.5=
8.5÷1.7=
0.48÷0.06=
2.4÷1.2=
①(0.32+5.6)÷0.8
②21.3×4+8×2.5
③4.8÷1.2÷0.4
④78.9-2.67÷2÷0.267
①26.8÷0.4÷2
②4.8÷0.6+3.5÷7
③84.4÷0.4-90.8
④7.2×2-18.6÷6
⑤4.2÷0.75÷0.5
⑥1.8×0.3÷1.2
3,6,9,15,24,,63,