Question

(-540),(1560),(540),(-60) solve using associative law

Answer 1

- 540 =-10×(27×2),(-10×27)×2 & & & & 1560=(10×78)×2 ,10×(78×2) & & & & 540=(10× 27)×2,10×(78×2 ) & & & & - 60=(2×3)×10, 2×(3×10) your answer