Question 60. 712+1112=32
Fill in the blanks.
(i) (−317)+(−125)=(−125)+(.....)
(ii) −9+−218=(......)+(−9)
(iii) (−813+37)+(−134)=(......)+[37+(−134)]
(iv) −12+(712+−911)=(−12+712)+(.....)
(v) 19−5+(−311+−78)={19−5+(.....)}+−78
(vi) −167+.....=......+−167=−167
Find the product
(1) 4 ⊗5 3
(2) 5 ⊗7 8
(3) (4 ⊗11 3) ⊗11 7
(4) (5 ⊗12 2) ⊗12 6