Question

Insert missing number
12{56}16
17{ }21?

Answer 1

Answer:

12*12=144

16*16=256

256-144=112

112÷2=56

now

17*17=289

21*21=441

441-289=152

152÷2=76

answer is 17{76}21

Answer 2

Answer:

76

Explanation:

12*12=144

16*16=256

256-144=112

112÷2=56

17*17=289

21*21=441

441-289=152

152÷2=76 answe