Here's the text extracted from the image:
Here's the text extracted from the image: (i) 1 5 8 × 1 5 12 ÷ 1 5 20 = 1 5 8 + 12 − 20 = 1 5 0 = 1 (ii) 2 5 3 × 2 5 7 ÷ 2 5 10 = 2 5 3 + 7 − 10 = 2 5 0 = 1 (iii) ( 1 2 ) 6 × ( 1 2 ) 3 ÷ ( 1 2 ) 8 = ( 1 2 ) 6 + 3 − 8 = ( 1 2 ) 1 = 1 2 (iv) ( 3 4 ) 2 × ( 3 4 ) 6 ÷ ( 3 4 ) 5 = ( 3 4 ) 2 + 6 − 5 = ( 3 4 ) 3 = 27 64