8 ; 7 Þ 8 + 7 = 15 b. 2 ; – 1 Þ __________________________________ c. – 3 ; – 4 Þ __________________________________

8 ; 7 Þ 8 + 7 = 15

b. 2 ; – 1 Þ __________________________________

c. – 3 ; – 4 Þ __________________________________

d. + 6 ; – 8 Þ __________________________________

e. + 10 ; + 2 Þ __________________________________

f. – 7 ; + 2 Þ __________________________________

g. – 3 ; – 1 Þ __________________________________

h. – 7 ; + 9_____________________________________-

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