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Grade three, volume two, math 24 points.
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Use 3, 6, 7 and 8 to calculate 24 points, and * * has 30 algorithms.

3×[﹙7-6﹚×8]

7+[﹙3+6﹚+8]

8+[3+﹙7+6﹚]

8+[﹙3+7﹚+6]

﹙7+3﹚+﹙8+6﹚

8+[7+﹙3+6﹚]

[﹙8+7﹚+3]+6

﹙8×3﹚×﹙7-6﹚

3+[7+﹙8+6﹚]

3+[﹙6+8﹚+7]

[3+﹙8+6﹚]+7

6×[﹙3+8﹚-7]

7+[3+﹙8+6﹚]

[﹙7-6﹚×3]×8

7+[﹙8+3﹚+6]

[3×﹙7-6﹚]×8

[8×﹙7-6﹚]×3

[8-﹙7-3﹚]×6

[﹙8+3﹚+7]+6

6×[8-﹙7-3﹚]

8+[3+﹙6+7﹚]

7+[6+﹙3+8﹚]

3÷[﹙7-6﹚÷8]

﹙8+6﹚+﹙7+3﹚

8+[﹙6+7﹚+3]

8×[3×﹙7-6﹚]

[3+﹙8-7﹚]×6

[﹙3-7﹚+8]×6

[7+﹙8+6﹚]+3

[﹙8+3﹚+6]+7