①0.42×1.3=
②3.84×2.6≈(保留一位小数)
③5.76×0.36=
④0.725×1.5≈(保留两位小数)
⑤31×0.106=
⑥4.8×0.25=
28.9÷0.25÷0.4
1.14÷1.5×0.8
3.5÷0.4÷0.25
3.4+(0.25+1.6)÷0.25
0.03×0.6=
2.4×0.5=
4.3×0.2=
0.45÷0.9=
8÷0.04=
3.5+0.7=
36÷0.06=
0.25×4÷0.25×4=
※x÷4.5=18
8(x-3)=40.8
5x+1.4x=16
0.5(x+1.2)+1.5x=1