Question

Rayna wrote 260,980 as (2 x 100,000) + (6 x 10,000) + ( 9 x 1,000) + (8 x 100). what error did rayna make?

Answer 1

She should have put (9×100)+ (8×10)

Answer 2

Explanation:

Rayna wrote 260,980 as

(2 × 100,000) + (6 × 1000) + (9 × 1000) + (8 × 100)

Since 2 is at 100 thousand place so 2 × 100,000 is correct.

6 is at 10 thousand place so 6 × 10000 is correct.

9 is at hundreds place so it should be (9 × 100) in place of ( 9 × 1000) so this step is wrong.

Similarly 8 is at tenth place so it will be (8 × 10) in place of ( 8 × 100) so this step is also wrong.

So Rayna made error in writting ( 9 × 1000 ) and ( 8 × 100 ).