Question

Find using distrubutive property : A) 728 x 101 B) 5437 x 1001 C) 824 x 25 D) 4275 x 125 E) 504 x 35

Answer 1

Answer:

Step-by-step explanation:

(a)728 × 101= 728×( 100 + 1 )

= 728 × 100 + 728 × 1

= 72800 + 728

= 72800 + 700 +28

= 73528

(b) 5437 x 1001

= 5437 x (1000 + 1)

= 5437 x 1000 + 5437 x 1

= 5437000 + 5437

= 5442437

(c)824 × 25

= 824 × (20 + 5)

= 824 × 20 + 824 × 5

= 16480+4120

= 20600

(d) 4275 x 125

= 4275 x (100 + 20 + 5)

= 4275 x 100 + 4275 x 20 + 4275 x 5

= 427500 + 85500 + 21375

= 534375

(e) 504 × 35

= (500+4) × 35

= 500×35+4×35

= 500×(30+5)+4×(30+5)

= 500×30+500×5+4×30+4×5=

15000+2500+120+20= 17640