Question

直接写出得数． 1 2 + 1 3 = 7 9 - 1 3 = 1- 5 8

直接写出得数． 1 2 + 1 3 = 7 9 - 1 3 = 1- 5 8 = 1 8 +0.625= 1 3 - 1 6 = 1 4 + 2 5 = 3- 1 1 2 = 1 4 +0.75=

Answer 1

1 2 + 1 3 = 5 6 ， 7 9 - 1 3 = 4 9 ， 1- 5 8 = 3 8 ， 1 8 +0.625= 3 4 ， 1 3 - 1 6 = 1 6 ， 1 4 + 2 5 = 13 20 ， 3- 1 1 2 =1 1 2 1 4 +0.75=1．