Question

Q9 Find the product by suitable rearrangement

(a) 4 x 800 x 125 x 25

(b) 1285 x 5 x 120

( c )625 x 279 x 16

Answer 1

Step-by-step explanation:

(a) 4×800×125×25

3200×125×5

3200×625

2000000.

(b)1285×5×120

1285×600

771000.

(C) 625×279×16

625×4464

2790000.

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Answer 2

Answer:

a) 4 x 800 x 125 x25

(4 x 800) x (125x 25)

3200 x 3125 = 10,000,000  

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b) 1285 x 5 x 120

1285 x ( 5 x120)

1285 x 600 = 771,000

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 c) 625 x 279 x 16

( 625 x 16) x 279

10,000 x 279 = 2,790,000

Step-by-step explanation: