15×4= | 7+0.7= | 120÷5= | 0.42= | 12× = |
= | ÷4= | = | 1÷0.25= | = |
1÷ = + = × = ×12× =
2÷40%= ÷3= ﹣ = + + + =
×4= 5÷ = 2× = 12÷ =
1÷ = 6× = ÷ = × =
× = ÷ = × = ÷ =
1- = × = ÷ = + =
× = ÷6= 182= 9π=
39+241= 728-456= 0.23×4 = 4.3-1.9 =
+ = 125÷ = ÷ = 90÷6=
1.5× = 4.2+ ÷0.5 = 51÷ 0.3= 125×8÷125×8=
① × = ②24× = ③3× = ④1﹣ =
⑤ ÷2= ⑥2÷ = ⑦ ÷ = ⑧0÷ =
210×3= ×4= ÷5= - =
0÷ = 1÷ = + = 2- =
÷3是表示把 平均分成3份,就相当于求的。
城市 | 徐州 | 连云港 | 宿迁 | 淮安 | 盐城 | 泰州 | 扬州 |
微克/立方米 | 191 | 102 | 111 | 125 | 72 | 142 | 201 |
城市 | 南通 | 南京 | 镇江 | 常州 | 无锡 | 苏州 | |
微克/立方米 | 69 | 175 | 179 | 102 | 126 | 106 |
PM2.5日平均值定为不超过75微克/立方米为达标,这一天不达标的城市占了全省的( )。
0×5.16= 9.8+2.6= 502-399=
÷4= × = 20×5=