8 () 8 () 8 = 2 add operation symbol in bracket

8 () 8 () 8 = 2 add operation symbol in bracket

8÷8+8÷8=2

What sign is added in the middle of 3, - 7,8,13 equal to 24

3X13-8+（-7）=24

18. In the proper position between 11 8, fill in the appropriate operation symbols (+, -, ×, △ to make the operation result equal to 1998
8 8 8 8 8 8 8 8 8 8 8 =1998
18. Fill in the appropriate operation symbols +, -, ×, △ in the appropriate position between 11 eights to make the operation result equal to 1998.
8 8 8 8 8 8 8 8 8 8 8 =1998

(8888-8)÷8+888+8-8＝1998
8÷8×(8888-8)÷8+888＝1998
(8888-8)÷8+888×8÷8＝1998
8×(8888-8)÷(8×8)+888＝1998

The symbol () / (-) = 5 in parentheses

5（ +）5（ -）5（/ ）5=9

1 23 = 1 12 34 = 11 23 45 = 1, fill in the appropriate operation symbol (bracket can be added) to make the equation hold

(1+2)/3=1
1*(2+3-4)=1
1+2-3-4+5=1

4 () 4 () 4 = 24 () 4 () 4 () 4 = 7, fill in the appropriate operation symbol

4(÷)4(+)4(÷)4=2
4(+)4(-)4(÷)4=7

4. How to fill in the operation symbols of 7,2,3 = 1

4-（7+2）/3=1

4 () 4 () 4 = 4 () filled with operation symbol

(4-4)x4+4=4

Fill in the operation symbol 3 = 4
Acute sodium

（3×3+3）÷3=4

4 () 4 () 4 () = 3 filled with operation symbol

4×4—4÷4=3
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