Question

State which is greater:
(i) (8 + 9) × 10 and 8 + 9 × 10
(ii) (8 − 9) × 10 and 8 − 9 × 10
(iii) {(−2) − 5} × (−6) and (−2) −5 × (−6)

Answer 1

(i) ( 8 + 9) × 10 = 170 > 8 + 90 = 98

(ii) (8 − 9) ​× 10 = −10 > 8 − 90 = − 82

(iii) {(−2) − 5 } ​× (−6) = −7 ​× (−6) = 42 > (−2) − 5 × (−6) = ( −2 ) − (−30) = −2 + 30 = 28