乘除法口诀口算练习

1、1.7 x 5 =8 x 8 =3 x 4 =35 + 72.6 x 9 =72 + 8 =56 + 7 =12 + 23.6 x 8 =40 + 8 =4 x 9 =4 x 8 :4.16+4 =7 x 9 =72 + 8 =40 + 55.7 x 9 =56 + 7 =21 + 3 =5 x 4 :6.54+6 =35 + 7 =5 x 8 =3 x 2 :7.10+2 =8 + 4 =3 x 3 =3 x 7 :8.5 x 7 =24 + 3 =24 + 6 =48 + 89.2 x 4 =8 x 3 =4 x 8 =63 + 910.10+2 =12 + 4 =6 x 4 =7 x 7

2、 :11.63+9 =9 x 4 =2 x 3 =36 + 412.12 + 3 =8 + 2 =14 + 2 =7 x 8 :13.9 x 3 =8 x 6 =40 + 5 =14 + 714.35+5 =14 + 7 =9 x 6 =10 + 515.5 x 9 =18 + 9 =6 x 2 =2 x 6 :16.9 x 8 =16 + 8 =5 x 2 =2 x 2 :17.3 x 6 =7 x 3 =21 + 7 =7 x 8 :18.20+4 =2 x 7 =56 + 7 =28 + 419.8 x 4 =9 x 7 =54 + 6 =28 + 720.35 + 7 =3 x 6 =

3、15 + 3 =6 x 3 :21.16+2 =16 + 8 =4 x 3 =4 x 4 :22.9 x 3 =6 x 6 =24 + 3 =9 x 4 :23.2 x 6 =7 x 3 =16 + 4 =4 x 8 :24.3 x 9 =7 x 4 =3 x 5 =6 x 8 :25.10+2 =9 x 3 =56 + 7 =8 x 5 :1.49 - 7 =36 + 6 =7 x 4 =6 + 22.7 x 4 =4 x 3 =3 x 5 =9 x 6 :3.3 x 6 =16 + 2 =27 + 9 =8 x 2 :4.24+4 =5 x 5 =18 + 6 =6 x 3 :5.3 x

4、9 =18 + 2 =24 + 3 =6 x 4 :6.48+6 =5 x 6 =54 + 9 =8 x 4 :7.4+2 =5 x 2 =8 x 7 =72 + 88.35 + 7 =48 + 8 =81 + 9 =6 x 3 :9.56+8 =8 x 7 =48 + 8 =12 + 610.4 x 3 =8 x 3 =9 x 6 =24 + 411.28 + 7 =7 x 8 =5 x 9 =6 x 8 :12.3 x 8 =27 + 9 =2 x 7 =10 + 213.14 + 7 =4 + 2 =36 + 6 =3 x 7 :14.6 x 4 =2 x 7 =18 + 9 =4 x

5、4 :15.20+4 =56 + 7 =2 x 7 =8 x 3 :16.64+8 =54 + 9 =48 + 8 =9 x 3 :17.3 x 8 =16 + 2 =56 + 8 =49 + 718.7 x 9 =3 x 9 =4 x 2 =4 + 219.8+4 =56 + 8 =6 + 2 =24 + 820.2 x 2 =24 + 6 =36 + 6 =9 x 8 :21.5 x 4 =9 x 7 =4 x 5 =8 + 422.64+8 =24 + 6 =18 + 3 =2 x 8 :23.36+9 =2 x 5 =9 x 6 =24 + 824.48+6 =14 + 2 =4 x

6、5 =30 + 625.54+9 =35 + 7 =8 x 2 =8 + 21.6 x 8 =7 x 4 =7 x 7 =8 x 5 :2.32+4 =18 + 6 =28 + 4 =8 x 9 :3.8 x 8 =18 + 3 =9 x 5 =3 x 4 :4.63 + 7 =45 + 9 =5 x 7 =9 x 2 :5.54+6 =42 + 7 =4 x 4 =7 x 2 :6.9 x 6 =35 + 7 =9 x 2 =2 x 7 :7.3 x 7 =3 x 9 =9 x 3 =6 x 3 :8.64+8 =35 + 7 =6 x 6 =12 + 29.8 x 7 =36 + 9 =8

7、 x 8 =42 + 610.24+6 =30 + 6 =7 x 6 =12 + 611.3 x 6 =4 x 4 =16 + 2 =6 x 6 :12.35+5 =8 x 8 =24 + 8 =4 x 7 :13.9 x 2 =56 + 8 =20 + 5 =5 x 7 :14.9 x 3 =2 x 3 =2 x 2 =30 + 615.4 x 3 =3 x 8 =4 x 2 =45 + 916.3 x 2 =3 x 7 =16 + 4 =40 + 817.5 x 5 =6 x 7 =54 + 6 =21 + 718.6 x 9 =18 + 9 =14 + 2 =8 x 9 :19.8 x

8、7 =21 + 7 =35 + 7 =7 x 5 :20.9+3 =32 + 8 =45 + 9 =24 + 421.16 + 8 =54 + 6 =9 x 3 =30 + 622.6 x 7 =7 x 9 =9 x 6 =54 + 623.72+9 =12 + 2 =16 + 2 =28 + 724.40+5 =27 + 3 =12 + 3 =9 x 3 :25.5 x 4 =20 + 5 =16 + 4 =21 + 31.21 + 7 =4 x 4 =6 x 5 =16 + 42.8 x 7 =6 x 2 =2 x 4 =56 + 73.9+3 =3 x 9 =2 x 6 =36 + 94

9、.48+8 =42 + 7 =21 + 3 =9 x 3 :5.36+4 =6 x 7 =2 x 8 =56 + 76.49 + 7 =9 x 2 =4 x 4 =21 + 77.18 + 6 =3 x 3 =6 x 5 =4 + 28.30+5 =18 + 3 =6 x 7 =20 + 59.6+2 =6 x 3 =6 x 9 =40 + 810.8 x 7 =4 + 2 =3 x 8 =8 x 2 :11.12 + 6 =8 x 5 =4 x 9 =2 x 6 :12.7 x 8 =54 + 6 =4 x 8 =6 x 5 :13.6 x 4 =64 + 8 =2 x 6 =4 x 7 :

10、14.3 x 7 =56 + 8 =8 x 9 =8 x 5 :15.5 x 9 =9 x 3 =42 + 7 =5 x 7 :16.4 x 9 =10 + 5 =8 x 5 =12 + 417.3 x 4 =36 + 6 =35 + 7 =5 x 3 :18.40+8 =2 x 8 =45 + 9 =20 + 419.9 x 4 =56 + 8 =4 x 4 =18 + 220.14 + 2 =8 x 2 =16 + 2 =54 + 921.36+9 =3 x 2 =16 + 4 =7 x 5 :22.12 + 3 =6 x 8 =7 x 8 =9 x 7 :23.9 x 9 =3 x 2

11、=16 + 2 =2 x 9 :24.6 x 6 =72 + 8 =36 + 4 =35 + 725.8 x 3 =6 x 4 =12 + 4 =72 + 91.5 x 8 =3 x 4 =9 x 8 =5 x 7 :2.45+5 =18 + 6 =7 x 8 =35 + 73.12+2 =9 x 2 =12 + 6 =6 x 9 :4.48+6 =3 x 8 =36 + 9 =3 x 4 :5.5 x 5 =9 x 4 =36 + 4 =6 x 5 :6.10+2 =16 + 4 =12 + 4 =16 + 27.5 x 5 =9 x 3 =9 x 5 =6 x 4 :8.8 x 7 =9

12、x 4 =8 x 9 =8 x 6 :9.16+4 =56 + 8 =63 + 7 =4 + 210.3 x 8 =32 + 8 =10 + 2 =5 x 5 :11.2 x 2 =5 x 2 =5 x 8 =5 x 6 :12.24+4 =3 x 6 =3 x 4 =4 + 213.63+9 =6 + 3 =36 + 4 =5 x 3 :14.2 x 6 =27 + 3 =5 x 6 =7 x 8 :15.2 x 2 =3 x 2 =14 + 7 =8 + 216.7 x 7 =48 + 8 =7 x 4 =9 x 9 :17.36+9 =6 + 2 =36 + 4 =3 x 2 :18.6

13、 x 9 =5 x 5 =8 x 2 =16 + 419.6 x 4 =8 x 5 =4 x 6 =6 x 3 :20.9 x 7 =40 + 5 =56 + 7 =8 x 7 :21.18+2 =9 x 3 =8 x 5 =42 + 622.4 x 8 =5 x 6 =2 x 6 =40 + 523.21 + 7 =36 + 4 =3 x 4 =5 x 7 :24.14 + 7 =56 + 7 =2 x 2 =7 x 3 :25.42 + 7 =45 + 5 =81 + 9 =2 x 9 :1.56 + 7 =48 + 8 =2 x 9 =32 + 82.4 x 2 =6 x 3 =14 +

14、 2 =15 + 53.7 x 6 =8 x 6 =8 + 4 =4 x 9 :4.9 x 4 =6 x 3 =2 x 5 =2 x 7 :5.5 x 4 =3 x 6 =72 + 8 =9 x 6 :6.6 x 5 =6 x 6 =2 x 2 =2 x 9 :7.24+6 =8 x 7 =3 x 9 =49 + 78.4 x 6 =5 x 7 =5 x 9 =30 + 59.2 x 5 =8 x 6 =5 x 7 =2 x 7 :10.28+4 =8 x 9 =3 x 5 =7 x 5 :11.49 + 7 =7 x 6 =9 x 6 =2 x 5 :12.54+6 =8 + 2 =32 +

15、 4 =5 x 7 :13.49 + 7 =5 x 3 =42 + 6 =2 x 6 :14.4 x 8 =6 x 7 =7 x 8 =16 + 415.12 + 3 =2 x 5 =4 x 4 =54 + 616.30+6 =3 x 6 =5 x 8 =24 + 417.5 x 5 =6 x 2 =7 x 9 =7 x 3 :18.15 + 5 =42 + 7 =16 + 2 =49 + 719.8 x 3 =7 x 5 =45 + 9 =36 + 920.20+4 =10 + 5 =4 x 7 =18 + 621.21 + 7 =18 + 2 =2 x 6 =28 + 722.8 x 5

16、=9 x 8 =12 + 6 =6 + 323.18 + 3 =8 x 6 =6 x 7 =3 x 4 :24.2 x 4 =6 x 8 =72 + 9 =72 + 825.9 x 5 =48 + 8 =2 x 8 =5 x 5 :1.24+3 =4 x 7 =72 + 8 =9 x 4 :2.32+4 =2 x 3 =40 + 5 =7 x 2 :3.42 + 7 =5 x 9 =81 + 9 =16 + 44.14 + 2 =24 + 4 =8 x 9 =2 x 2 :5.16+4 =24 + 3 =54 + 9 =4 x 7 :6.36+4 =28 + 4 =5 x 2 =15 + 57

17、.5 x 2 =56 + 8 =18 + 3 =42 + 78.42+6 =32 + 4 =7 x 7 =3 x 9 :9.7 x 7 =36 + 6 =36 + 9 =14 + 210.8 x 9 =27 + 9 =9 x 5 =8 x 2 :11.30+5 =72 + 9 =5 x 9 =4 x 4 :12.6 x 2 =81 + 9 =42 + 6 =8 x 5 :13.7 x 5 =4 x 3 =27 + 9 =8 + 214.2 x 5 =10 + 2 =4 x 2 =40 + 515.42+6 =5 x 2 =35 + 7 =48 + 816.21 + 3 =27 + 3 =28

18、+ 4 =24 + 417.9+3 =32 + 8 =7 x 2 =5 x 6 :18.9 x 3 =9 + 3 =81 + 9 =21 + 719.9 x 4 =36 + 9 =7 x 2 =9 x 7 :20.42+6 =8 x 5 =42 + 7 =54 + 621.6 x 9 =5 x 6 =4 x 8 =15 + 322.2 x 3 =6 x 7 =2 x 8 =21 + 323.7 x 4 =3 x 5 =63 + 9 =2 x 8 :24.8 x 8 =5 x 4 =15 + 5 =35 + 525.30+6 =2 x 5 =7 x 5 =4 x 8 :1.4 x 4 =3 x

19、3 =56 + 8 =27 + 32.10 + 5 =20 + 5 =9 x 5 =14 + 73.54+9 =9 x 6 =18 + 9 =24 + 34.9 x 9 =8 x 6 =5 x 9 =27 + 35.27+3 =7 x 7 =3 x 9 =25 + 56.21 + 3 =49 + 7 =5 x 9 =45 + 97.36+9 =14 + 2 =3 x 7 =5 x 4 :8.7 x 4 =35 + 5 =16 + 4 =35 + 79.2 x 7 =42 + 7 =12 + 2 =24 + 610.8 x 5 =9 x 8 =3 x 7 =9 x 3 :11.9 x 8 =8

20、x 4 =7 x 6 =5 x 7 :12.8+2 =2 x 7 =12 + 6 =56 + 713.54+9 =12 + 3 =12 + 4 =5 x 6 :14.32+4 =14 + 2 =4 + 2 =36 + 415.81 + 9 =20 + 5 =64 + 8 =48 + 816.16 + 8 =49 + 7 =20 + 5 =45 + 917.40+8 =6 x 8 =15 + 5 =3 x 5 :18.18 + 6 =8 x 5 =2 x 9 =4 + 219.6 x 3 =2 x 7 =36 + 4 =8 x 5 :20.6 x 6 =7 x 2 =27 + 9 =4 x 9

21、:21.8 x 8 =63 + 7 =12 + 6 =2 x 3 :22.8 x 9 =5 x 7 =81 + 9 =6 x 4 :23.6 x 7 =5 x 5 =9 x 7 =3 x 6 :24.7 x 3 =45 + 5 =18 + 3 =8 x 7 :25.42 + 7 =36 + 4 =6 + 2 =8 + 41.24+4 =7 x 7 =9 x 8 =15 + 52.35+5 =42 + 7 =2 x 9 =25 + 53.2 x 6 =7 x 6 =3 x 6 =7 x 8 :4.6 x 2 =56 + 7 =3 x 2 =24 + 35.21 + 7 =14 + 2 =56 +

22、 8 =2 x 9 :6.25+5 =12 + 4 =3 x 5 =15 + 37.6 x 8 =9 x 8 =81 + 9 =42 + 68.9 x 9 =4 x 8 =12 + 3 =35 + 59.2 x 8 =25 + 5 =6 x 4 =9 x 2 :10.56 + 7 =6 + 3 =4 x 5 =25 + 511.48+6 =5 x 6 =14 + 7 =4 x 7 :12.2 x 9 =8 x 8 =49 + 7 =7 x 5 :13.35+5 =72 + 8 =27 + 9 =9 x 6 :14.81 + 9 =12 + 6 =8 x 3 =8 x 7 :15.3 x 5 =

23、18 + 6 =6 x 2 =16 + 416.14 + 7 =16 + 8 =45 + 9 =18 + 617.3 x 6 =40 + 5 =3 x 3 =10 + 218.56 + 7 =24 + 4 =3 x 6 =9 x 4 :19.3 x 4 =7 x 7 =18 + 3 =7 x 9 :20.18+2 =6 + 2 =6 x 8 =28 + 721.18 + 9 =9 x 2 =6 + 3 =36 + 922.9 x 2 =9 x 6 =18 + 9 =32 + 823.3 x 7 =35 + 5 =20 + 4 =3 x 6 :24.7 x 2 =18 + 9 =3 x 8 =4

24、 x 2 :25.8 x 3 =2 x 8 =2 x 3 =9 x 8 :1.54+9 =5 x 6 =54 + 6 =2 x 2 :2.8 x 8 =15 + 3 =49 + 7 =16 + 43.56 + 7 =35 + 7 =4 x 5 =3 x 5 :4.40+8 =14 + 2 =2 x 2 =8 x 7 :5.2 x 3 =2 x 6 =6 x 6 =5 x 2 :6.9+3 =32 + 4 =12 + 4 =32 + 87.5 x 3 =42 + 7 =10 + 5 =54 + 68.16+2 =12 + 6 =56 + 7 =18 + 39.14 + 2 =5 x 2 =35

25、+ 5 =6 x 6 :10.6 x 4 =5 x 7 =49 + 7 =6 x 7 :11.8 x 3 =9 x 3 =18 + 2 =56 + 712.18 + 9 =6 + 2 =56 + 7 =8 x 9 :13.72+8 =5 x 2 =63 + 9 =36 + 914.56+8 =8 x 3 =27 + 9 =20 + 515.7 x 4 =2 x 4 =36 + 9 =81 + 916.25+5 =16 + 4 =35 + 7 =12 + 617.16 + 8 =24 + 3 =3 x 6 =2 x 8 :18.12+2 =6 + 2 =28 + 4 =36 + 419.28 +

26、 7 =9 x 9 =5 x 2 =24 + 420.12+2 =5 x 9 =3 x 9 =54 + 921.7 x 4 =54 + 9 =4 x 3 =7 x 2 :22.5 x 9 =42 + 6 =6 x 3 =7 x 7 :23.7 x 2 =5 x 3 =45 + 9 =2 x 4 :24.9 x 4 =5 x 2 =6 x 4 =8 x 3 :25.9 x 5 =45 + 9 =5 x 8 =6 x 4 :1.24+4 =18 + 9 =54 + 6 =12 + 22.35 + 7 =3 x 6 =18 + 6 =5 x 6 :3.4 x 9 =45 + 9 =12 + 6 =1

27、0 + 54.9 x 6 =9 x 4 =9 x 3 =5 x 6 :5.15 + 5 =48 + 8 =2 x 9 =14 + 76.9 x 6 =32 + 4 =48 + 8 =6 x 8 :7.4+2 =32 + 8 =4 x 7 =7 x 8 :8.14 + 2 =2 x 9 =8 x 2 =5 x 8 :9.2 x 8 =30 + 6 =24 + 4 =20 + 410.4 x 9 =12 + 6 =28 + 7 =15 + 511.42+6 =4 x 5 =5 x 9 =63 + 912.2 x 8 =54 + 6 =3 x 6 =45 + 913.42 + 7 =4 x 8 =6

28、 x 6 =8 x 7 :14.5 x 4 =32 + 8 =28 + 4 =9 + 315.64+8 =8 x 7 =4 x 4 =5 x 4 :16.9 x 6 =6 x 6 =72 + 9 =9 x 5 :17.5 x 6 =8 x 7 =48 + 8 =2 x 2 :18.8 x 4 =27 + 9 =4 x 3 =15 + 319.20+5 =16 + 8 =63 + 7 =9 x 4 :20.16+2 =9 x 4 =56 + 7 =45 + 521.27+3 =18 + 3 =36 + 4 =32 + 822.7 x 6 =14 + 2 =5 x 3 =8 + 223.81 +

29、9 =5 x 4 =6 x 3 =5 x 7 :24.8 x 2 =6 + 2 =16 + 4 =7 x 4 :25.8 x 7 =32 + 4 =16 + 2 =12 + 21.12 + 3 =7 x 9 =12 + 6 =36 + 62.56 + 7 =9 x 6 =6 x 9 =5 x 5 :3.12+4 =3 x 9 =2 x 7 =3 x 2 :4.16 + 8 =8 x 9 =6 x 2 =7 x 2 :5.81 + 9 =9 x 9 =8 x 5 =5 x 6 :6.6 x 7 =18 + 3 =7 x 2 =3 x 3 :7.40+5 =3 x 2 =3 x 5 =6 x 8

30、:8.9 x 8 =9 x 4 =4 x 4 =24 + 39.56 + 7 =8 x 7 =12 + 3 =30 + 610.21 + 3 =7 x 2 =14 + 7 =27 + 311.7 x 2 =5 x 4 =21 + 7 =5 x 6 :12.72+8 =6 + 3 =5 x 2 =8 x 6 :13.8 x 6 =10 + 5 =6 x 3 =6 + 314.8 x 7 =5 x 2 =8 + 4 =6 x 7 :15.54+9 =8 x 9 =45 + 9 =10 + 216.12 + 6 =4 x 2 =8 x 3 =72 + 917.12+4 =30 + 5 =2 x 2

31、=9 x 8 :18.40+5 =8 x 7 =8 x 2 =8 + 219.9+3 =9 x 7 =56 + 7 =16 + 820.5 x 7 =6 x 7 =3 x 2 =6 x 9 :21.20+5 =6 + 2 =6 x 3 =45 + 522.10 + 5 =16 + 2 =16 + 4 =7 x 8 :23.7 x 8 =5 x 4 =5 x 3 =3 x 2 :24.35+5 =36 + 6 =15 + 3 =8 x 4 :25.2 x 5 =30 + 6 =81 + 9 =15 + 31.6 x 4 =8 + 4 =27 + 3 =3 x 3 :2.15 + 3 =6 x 6

32、 =14 + 7 =72 + 83.36+4 =3 x 2 =8 x 9 =14 + 24.14 + 2 =15 + 5 =9 x 9 =2 x 9 :5.21 + 7 =5 x 5 =10 + 5 =54 + 66.27+3 =7 x 8 =21 + 7 =8 + 47.72+8 =9 x 2 =4 x 7 =28 + 48.9 x 6 =12 + 2 =5 x 7 =24 + 89.15 + 5 =4 x 7 =20 + 4 =64 + 810.30+6 =6 x 3 =6 x 7 =2 x 8 :11.9 x 4 =63 + 9 =12 + 3 =40 + 512.3 x 4 =27 +

33、 3 =8 x 6 =45 + 913.21 + 3 =9 x 5 =18 + 6 =35 + 714.4 x 7 =6 x 3 =25 + 5 =20 + 515.28 + 7 =32 + 8 =42 + 7 =18 + 916.49 + 7 =4 x 4 =12 + 4 =72 + 917.9 x 9 =40 + 8 =18 + 6 =32 + 418.8 x 4 =54 + 6 =45 + 9 =4 x 2 :19.4 x 4 =5 x 7 =30 + 5 =24 + 420.9 x 9 =9 x 5 =32 + 8 =4 + 221.10+2 =2 x 6 =10 + 5 =5 x 4

34、 :22.18+2 =12 + 4 =8 x 6 =32 + 823.15 + 5 =24 + 8 =42 + 6 =54 + 924.10+2 =3 x 9 =49 + 7 =63 + 925.3 x 7 =81 + 9 =72 + 8 =27 + 31.24+4 =12 + 4 =8 + 4 =2 x 8 :2.3 x 4 =15 + 3 =45 + 5 =3 x 7 :3.6+2 =25 + 5 =8 + 2 =40 + 84.2 x 6 =48 + 6 =9 x 7 =24 + 45.72+8 =2 x 6 =32 + 4 =48 + 66.7 x 3 =54 + 6 =4 + 2 =

35、64 + 87.4 x 4 =6 + 3 =6 x 3 =40 + 88.20+4 =24 + 8 =81 + 9 =35 + 79.4 x 2 =9 + 3 =21 + 3 =18 + 910.8 x 6 =16 + 4 =49 + 7 =6 x 2 :11.63+9 =8 x 7 =3 x 5 =36 + 412.28+4 =4 + 2 =5 x 2 =5 x 7 :13.20+5 =48 + 8 =6 x 5 =18 + 314.28 + 7 =5 x 9 =7 x 4 =3 x 2 :15.12 + 3 =18 + 2 =6 x 4 =56 + 716.3 x 4 =30 + 6 =4

36、 x 4 =24 + 317.35+5 =6 + 3 =9 x 8 =25 + 518.9 x 7 =40 + 5 =9 x 9 =6 x 7 :19.3 x 2 =7 x 2 =4 x 3 =40 + 820.9+3 =4 x 7 =12 + 2 =2 x 8 :21.3 x 3 =18 + 9 =9 x 2 =5 x 6 :22.3 x 4 =9 x 7 =6 + 2 =30 + 623.30+6 =28 + 4 =6 x 4 =3 x 4 :24.6 x 7 =24 + 4 =4 x 8 =4 x 4 :25.35+5 =16 + 2 =7 x 3 =2 x 2 :1.8 x 9 =14

37、 + 7 =9 + 3 =4 x 8 :2.5 x 9 =14 + 2 =5 x 4 =28 + 73.24+3 =7 x 6 =18 + 6 =4 x 9 :4.4+2 =7 x 9 =15 + 3 =10 + 55.35 + 7 =2 x 4 =2 x 3 =9 x 2 :6.24+6 =10 + 2 =8 x 3 =27 + 37.6 x 6 =18 + 6 =7 x 6 =6 x 3 :8.6 x 9 =8 x 6 =8 x 4 =56 + 79.3 x 4 =8 x 3 =7 x 3 =9 x 8 :10.21 + 3 =2 x 2 =4 x 4 =9 x 5 :11.20+4 =6

38、 x 6 =2 x 2 =16 + 412.30+6 =6 x 4 =54 + 6 =56 + 713.3 x 5 =30 + 6 =56 + 7 =54 + 614.35 + 7 =2 x 3 =32 + 8 =7 x 4 :15.18 + 3 =6 x 3 =48 + 8 =56 + 816.21 + 3 =3 x 3 =20 + 5 =72 + 917.12 + 3 =9 x 5 =3 x 3 =42 + 718.3 x 9 =10 + 5 =14 + 7 =9 x 9 :19.36+6 =9 x 9 =18 + 6 =2 x 2 :20.4 x 4 =6 + 3 =21 + 3 =9

39、x 8 :21.2 x 7 =32 + 8 =6 x 6 =2 x 5 :22.3 x 2 =7 x 6 =2 x 6 =5 x 6 :23.28 + 7 =9 x 8 =14 + 7 =3 x 7 :24.3 x 8 =4 x 3 =24 + 8 =2 x 6 :25.7 x 7 =64 + 8 =40 + 8 =14 + 21.9 x 2 =8 x 4 =6 x 4 =24 + 42.45+5 =18 + 6 =20 + 5 =24 + 33.4 x 6 =28 + 4 =30 + 6 =16 + 24.16 + 8 =5 x 8 =3 x 4 =8 x 7 :5.6+3 =49 + 7

40、=8 + 2 =4 x 7 :6.5 x 5 =8 x 8 =2 x 3 =4 x 4 :7.5 x 9 =5 x 5 =6 + 2 =63 + 78.9 x 9 =18 + 6 =2 x 4 =14 + 29.8 x 2 =30 + 6 =8 x 7 =12 + 610.24+3 =4 x 2 =14 + 2 =42 + 711.2 x 8 =18 + 2 =6 x 2 =9 x 9 :12.2 x 7 =8 x 5 =5 x 8 =14 + 713.8 x 3 =5 x 9 =9 x 6 =8 x 2 :14.4 x 2 =45 + 9 =14 + 2 =6 x 5 :15.9 x 4 =

41、40 + 5 =27 + 3 =72 + 916.4 x 4 =2 x 3 =3 x 8 =48 + 617.36+4 =3 x 7 =6 x 4 =8 + 418.9 x 9 =3 x 9 =2 x 4 =18 + 219.3 x 9 =25 + 5 =16 + 4 =56 + 820.40+8 =42 + 7 =18 + 6 =32 + 821.63 + 7 =48 + 8 =8 x 7 =18 + 222.7 x 4 =2 x 6 =8 x 2 =9 x 4 :23.4 x 2 =14 + 7 =40 + 5 =7 x 7 :24.4 x 5 =6 x 7 =9 x 2 =45 + 52

42、5.56+8 =30 + 5 =6 + 2 =14 + 71.64+8 =36 + 4 =40 + 8 =32 + 42.9 x 4 =9 x 7 =8 + 2 =9 x 2 :3.8+4 =6 x 4 =4 x 8 =3 x 5 :4.72+9 =14 + 2 =5 x 2 =8 x 5 :5.6 x 3 =18 + 6 =8 x 2 =49 + 76.5 x 7 =2 x 7 =72 + 8 =28 + 47.5 x 5 =7 x 3 =6 x 4 =56 + 88.54+6 =42 + 6 =56 + 7 =21 + 39.12+4 =5 x 8 =3 x 3 =16 + 210.6 x

43、 6 =64 + 8 =7 x 4 =9 x 3 :11.48+8 =48 + 6 =6 x 8 =8 x 2 :12.4 x 5 =81 + 9 =2 x 5 =4 x 4 :13.9 x 6 =8 + 4 =45 + 9 =4 x 8 :14.48+6 =9 x 9 =2 x 8 =45 + 915.3 x 2 =4 x 3 =20 + 4 =72 + 816.5 x 6 =36 + 6 =25 + 5 =35 + 717.2 x 4 =5 x 4 =4 x 9 =24 + 618.3 x 7 =28 + 4 =24 + 4 =4 x 3 :19.2 x 9 =3 x 4 =36 + 6

44、=54 + 620.7 x 2 =3 x 2 =2 x 4 =8 x 7 :21.6 x 8 =5 x 8 =9 x 8 =4 x 3 :22.27+9 =5 x 9 =42 + 7 =7 x 9 :23.32+4 =9 + 3 =4 x 8 =20 + 424.28+4 =8 x 2 =16 + 2 =42 + 725.8+2 =6 x 7 =24 + 8 =2 x 6 :1.2 x 3 =18 + 6 =5 x 7 =7 x 8 :2.8 x 7 =9 x 3 =16 + 2 =14 + 73.8 x 2 =4 x 9 =4 x 2 =16 + 84.9 x 5 =42 + 6 =3 x

45、8 =7 x 3 :5.35+5 =8 x 2 =8 + 2 =27 + 96.30+6 =36 + 4 =24 + 3 =4 x 4 :7.28+4 =20 + 4 =54 + 6 =49 + 78.10 + 5 =36 + 6 =9 x 3 =3 x 5 :9.4 x 6 =28 + 7 =54 + 6 =25 + 510.56+8 =2 x 3 =3 x 2 =8 x 4 :11.9 x 3 =54 + 6 =42 + 6 =27 + 312.9+3 =10 + 5 =6 + 2 =20 + 513.48+8 =56 + 7 =3 x 8 =54 + 614.15 + 5 =28 + 7 =8 x 7 =27 + 315.81 + 9 =2 x 4 =18 + 9 =4 x